diff --git a/.gitignore b/.gitignore
index 47267a0..06985cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@ node_modules
 /types
 /api-doc
 coverage
+/mod.d.ts
+/mod.js
diff --git a/README.md b/README.md
index 67c0b20..22978fd 100644
--- a/README.md
+++ b/README.md
@@ -281,9 +281,10 @@ import { cac } from 'cac'
 ### With Deno
 
 ```ts
+// deno-types="https://unpkg.com/cac/mod.d.ts"
 import { cac } from 'https://unpkg.com/cac/mod.js'
 
-// ...
+const cli = cac('my-program')
 ```
 
 ## Projects Using CAC
diff --git a/dist/index.d.ts b/dist/index.d.ts
new file mode 100644
index 0000000..cf76294
--- /dev/null
+++ b/dist/index.d.ts
@@ -0,0 +1,191 @@
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+
+interface OptionConfig {
+    default?: any;
+    type?: any[];
+}
+declare class Option {
+    rawName: string;
+    description: string;
+    /** Option name */
+    name: string;
+    /** Option name and aliases */
+    names: string[];
+    isBoolean?: boolean;
+    required?: boolean;
+    config: OptionConfig;
+    negated: boolean;
+    constructor(rawName: string, description: string, config?: OptionConfig);
+}
+
+interface CommandArg {
+    required: boolean;
+    value: string;
+    variadic: boolean;
+}
+interface HelpSection {
+    title?: string;
+    body: string;
+}
+interface CommandConfig {
+    allowUnknownOptions?: boolean;
+    ignoreOptionDefaultValue?: boolean;
+}
+declare type HelpCallback = (sections: HelpSection[]) => void;
+declare type CommandExample = ((bin: string) => string) | string;
+declare class Command {
+    rawName: string;
+    description: string;
+    config: CommandConfig;
+    cli: CAC;
+    options: Option[];
+    aliasNames: string[];
+    name: string;
+    args: CommandArg[];
+    commandAction?: (...args: any[]) => any;
+    usageText?: string;
+    versionNumber?: string;
+    examples: CommandExample[];
+    helpCallback?: HelpCallback;
+    globalCommand?: GlobalCommand;
+    constructor(rawName: string, description: string, config: CommandConfig, cli: CAC);
+    usage(text: string): this;
+    allowUnknownOptions(): this;
+    ignoreOptionDefaultValue(): this;
+    version(version: string, customFlags?: string): this;
+    example(example: CommandExample): this;
+    /**
+     * Add a option for this command
+     * @param rawName Raw option name(s)
+     * @param description Option description
+     * @param config Option config
+     */
+    option(rawName: string, description: string, config?: OptionConfig): this;
+    alias(name: string): this;
+    action(callback: (...args: any[]) => any): this;
+    /**
+     * Check if a command name is matched by this command
+     * @param name Command name
+     */
+    isMatched(name: string): boolean;
+    get isDefaultCommand(): boolean;
+    get isGlobalCommand(): boolean;
+    /**
+     * Check if an option is registered in this command
+     * @param name Option name
+     */
+    hasOption(name: string): Option | undefined;
+    outputHelp(): void;
+    outputVersion(): void;
+    checkRequiredArgs(): void;
+    /**
+     * Check if the parsed options contain any unknown options
+     *
+     * Exit and output error when true
+     */
+    checkUnknownOptions(): void;
+    /**
+     * Check if the required string-type options exist
+     */
+    checkOptionValue(): void;
+}
+declare class GlobalCommand extends Command {
+    constructor(cli: CAC);
+}
+
+interface ParsedArgv {
+    args: ReadonlyArray<string>;
+    options: {
+        [k: string]: any;
+    };
+}
+declare class CAC extends EventEmitter {
+    /** The program name to display in help and version message */
+    name: string;
+    commands: Command[];
+    globalCommand: GlobalCommand;
+    matchedCommand?: Command;
+    matchedCommandName?: string;
+    /**
+     * Raw CLI arguments
+     */
+    rawArgs: string[];
+    /**
+     * Parsed CLI arguments
+     */
+    args: ParsedArgv['args'];
+    /**
+     * Parsed CLI options, camelCased
+     */
+    options: ParsedArgv['options'];
+    private showHelpOnExit;
+    private showVersionOnExit;
+    /**
+     * @param name The program name to display in help and version message
+     */
+    constructor(name?: string);
+    /**
+     * Add a global usage text.
+     *
+     * This is not used by sub-commands.
+     */
+    usage(text: string): this;
+    /**
+     * Add a sub-command
+     */
+    command(rawName: string, description?: string, config?: CommandConfig): Command;
+    /**
+     * Add a global CLI option.
+     *
+     * Which is also applied to sub-commands.
+     */
+    option(rawName: string, description: string, config?: OptionConfig): this;
+    /**
+     * Show help message when `-h, --help` flags appear.
+     *
+     */
+    help(callback?: HelpCallback): this;
+    /**
+     * Show version number when `-v, --version` flags appear.
+     *
+     */
+    version(version: string, customFlags?: string): this;
+    /**
+     * Add a global example.
+     *
+     * This example added here will not be used by sub-commands.
+     */
+    example(example: CommandExample): this;
+    /**
+     * Output the corresponding help message
+     * When a sub-command is matched, output the help message for the command
+     * Otherwise output the global one.
+     *
+     */
+    outputHelp(): void;
+    /**
+     * Output the version number.
+     *
+     */
+    outputVersion(): void;
+    private setParsedInfo;
+    /**
+     * Parse argv
+     */
+    parse(argv?: string[], { 
+    /** Whether to run the action for matched command */
+    run }?: {
+        run?: boolean | undefined;
+    }): ParsedArgv;
+    private mri;
+    runMatchedCommand(): any;
+}
+
+/**
+ * @param name The program name to display in help and version message
+ */
+declare const cac: (name?: string) => CAC;
+
+export default cac;
+export { cac };
diff --git a/dist/index.js b/dist/index.js
index 6e77518..4e62a1b 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -116,615 +116,488 @@ var lib = function (args, opts) {
 	return out;
 };
 
-const removeBrackets = (v) => v.replace(/[<[].+/, '').trim();
+const removeBrackets = (v) => v.replace(/[<[].+/, "").trim();
 const findAllBrackets = (v) => {
-    const ANGLED_BRACKET_RE_GLOBAL = /<([^>]+)>/g;
-    const SQUARE_BRACKET_RE_GLOBAL = /\[([^\]]+)\]/g;
-    const res = [];
-    const parse = (match) => {
-        let variadic = false;
-        let value = match[1];
-        if (value.startsWith('...')) {
-            value = value.slice(3);
-            variadic = true;
-        }
-        return {
-            required: match[0].startsWith('<'),
-            value,
-            variadic
-        };
+  const ANGLED_BRACKET_RE_GLOBAL = /<([^>]+)>/g;
+  const SQUARE_BRACKET_RE_GLOBAL = /\[([^\]]+)\]/g;
+  const res = [];
+  const parse = (match) => {
+    let variadic = false;
+    let value = match[1];
+    if (value.startsWith("...")) {
+      value = value.slice(3);
+      variadic = true;
+    }
+    return {
+      required: match[0].startsWith("<"),
+      value,
+      variadic
     };
-    let angledMatch;
-    while ((angledMatch = ANGLED_BRACKET_RE_GLOBAL.exec(v))) {
-        res.push(parse(angledMatch));
-    }
-    let squareMatch;
-    while ((squareMatch = SQUARE_BRACKET_RE_GLOBAL.exec(v))) {
-        res.push(parse(squareMatch));
-    }
-    return res;
+  };
+  let angledMatch;
+  while (angledMatch = ANGLED_BRACKET_RE_GLOBAL.exec(v)) {
+    res.push(parse(angledMatch));
+  }
+  let squareMatch;
+  while (squareMatch = SQUARE_BRACKET_RE_GLOBAL.exec(v)) {
+    res.push(parse(squareMatch));
+  }
+  return res;
 };
 const getMriOptions = (options) => {
-    const result = { alias: {}, boolean: [] };
-    for (const [index, option] of options.entries()) {
-        // We do not set default values in mri options
-        // Since its type (typeof) will be used to cast parsed arguments.
-        // Which mean `--foo foo` will be parsed as `{foo: true}` if we have `{default:{foo: true}}`
-        // Set alias
-        if (option.names.length > 1) {
-            result.alias[option.names[0]] = option.names.slice(1);
-        }
-        // Set boolean
-        if (option.isBoolean) {
-            if (option.negated) {
-                // For negated option
-                // We only set it to `boolean` type when there's no string-type option with the same name
-                const hasStringTypeOption = options.some((o, i) => {
-                    return (i !== index &&
-                        o.names.some(name => option.names.includes(name)) &&
-                        typeof o.required === 'boolean');
-                });
-                if (!hasStringTypeOption) {
-                    result.boolean.push(option.names[0]);
-                }
-            }
-            else {
-                result.boolean.push(option.names[0]);
-            }
+  const result = {
+    alias: {},
+    boolean: []
+  };
+  for (const [index, option] of options.entries()) {
+    if (option.names.length > 1) {
+      result.alias[option.names[0]] = option.names.slice(1);
+    }
+    if (option.isBoolean) {
+      if (option.negated) {
+        const hasStringTypeOption = options.some((o, i) => {
+          return i !== index && o.names.some((name) => option.names.includes(name)) && typeof o.required === "boolean";
+        });
+        if (!hasStringTypeOption) {
+          result.boolean.push(option.names[0]);
         }
+      } else {
+        result.boolean.push(option.names[0]);
+      }
     }
-    return result;
+  }
+  return result;
 };
 const findLongest = (arr) => {
-    return arr.sort((a, b) => {
-        return a.length > b.length ? -1 : 1;
-    })[0];
+  return arr.sort((a, b) => {
+    return a.length > b.length ? -1 : 1;
+  })[0];
 };
 const padRight = (str, length) => {
-    return str.length >= length ? str : `${str}${' '.repeat(length - str.length)}`;
+  return str.length >= length ? str : `${str}${" ".repeat(length - str.length)}`;
 };
 const camelcase = (input) => {
-    return input.replace(/([a-z])-([a-z])/g, (_, p1, p2) => {
-        return p1 + p2.toUpperCase();
-    });
+  return input.replace(/([a-z])-([a-z])/g, (_, p1, p2) => {
+    return p1 + p2.toUpperCase();
+  });
 };
 const setDotProp = (obj, keys, val) => {
-    let i = 0;
-    let length = keys.length;
-    let t = obj;
-    let x;
-    for (; i < length; ++i) {
-        x = t[keys[i]];
-        t = t[keys[i]] =
-            i === length - 1
-                ? val
-                : x != null
-                    ? x
-                    : !!~keys[i + 1].indexOf('.') || !(+keys[i + 1] > -1)
-                        ? {}
-                        : [];
-    }
+  let i = 0;
+  let length = keys.length;
+  let t = obj;
+  let x;
+  for (; i < length; ++i) {
+    x = t[keys[i]];
+    t = t[keys[i]] = i === length - 1 ? val : x != null ? x : !!~keys[i + 1].indexOf(".") || !(+keys[i + 1] > -1) ? {} : [];
+  }
 };
 const setByType = (obj, transforms) => {
-    for (const key of Object.keys(transforms)) {
-        const transform = transforms[key];
-        if (transform.shouldTransform) {
-            obj[key] = Array.prototype.concat.call([], obj[key]);
-            if (typeof transform.transformFunction === 'function') {
-                obj[key] = obj[key].map(transform.transformFunction);
-            }
-        }
-    }
+  for (const key of Object.keys(transforms)) {
+    const transform = transforms[key];
+    if (transform.shouldTransform) {
+      obj[key] = Array.prototype.concat.call([], obj[key]);
+      if (typeof transform.transformFunction === "function") {
+        obj[key] = obj[key].map(transform.transformFunction);
+      }
+    }
+  }
 };
 const getFileName = (input) => {
-    const m = /([^\\\/]+)$/.exec(input);
-    return m ? m[1] : '';
+  const m = /([^\\\/]+)$/.exec(input);
+  return m ? m[1] : "";
 };
 const camelcaseOptionName = (name) => {
-    // Camelcase the option name
-    // Don't camelcase anything after the dot `.`
-    return name
-        .split('.')
-        .map((v, i) => {
-        return i === 0 ? camelcase(v) : v;
-    })
-        .join('.');
+  return name.split(".").map((v, i) => {
+    return i === 0 ? camelcase(v) : v;
+  }).join(".");
 };
 class CACError extends Error {
-    constructor(message) {
-        super(message);
-        this.name = this.constructor.name;
-        if (typeof Error.captureStackTrace === 'function') {
-            Error.captureStackTrace(this, this.constructor);
-        }
-        else {
-            this.stack = new Error(message).stack;
-        }
-    }
+  constructor(message) {
+    super(message);
+    this.name = this.constructor.name;
+    if (typeof Error.captureStackTrace === "function") {
+      Error.captureStackTrace(this, this.constructor);
+    } else {
+      this.stack = new Error(message).stack;
+    }
+  }
 }
 
 class Option {
-    constructor(rawName, description, config) {
-        this.rawName = rawName;
-        this.description = description;
-        this.config = Object.assign({}, config);
-        // You may use cli.option('--env.* [value]', 'desc') to denote a dot-nested option
-        rawName = rawName.replace(/\.\*/g, '');
-        this.negated = false;
-        this.names = removeBrackets(rawName)
-            .split(',')
-            .map((v) => {
-            let name = v.trim().replace(/^-{1,2}/, '');
-            if (name.startsWith('no-')) {
-                this.negated = true;
-                name = name.replace(/^no-/, '');
-            }
-            return camelcaseOptionName(name);
-        })
-            .sort((a, b) => (a.length > b.length ? 1 : -1)); // Sort names
-        // Use the longest name (last one) as actual option name
-        this.name = this.names[this.names.length - 1];
-        if (this.negated) {
-            this.config.default = true;
-        }
-        if (rawName.includes('<')) {
-            this.required = true;
-        }
-        else if (rawName.includes('[')) {
-            this.required = false;
-        }
-        else {
-            // No arg needed, it's boolean flag
-            this.isBoolean = true;
-        }
-    }
+  constructor(rawName, description, config) {
+    this.rawName = rawName;
+    this.description = description;
+    this.config = Object.assign({}, config);
+    rawName = rawName.replace(/\.\*/g, "");
+    this.negated = false;
+    this.names = removeBrackets(rawName).split(",").map((v) => {
+      let name = v.trim().replace(/^-{1,2}/, "");
+      if (name.startsWith("no-")) {
+        this.negated = true;
+        name = name.replace(/^no-/, "");
+      }
+      return camelcaseOptionName(name);
+    }).sort((a, b) => a.length > b.length ? 1 : -1);
+    this.name = this.names[this.names.length - 1];
+    if (this.negated) {
+      this.config.default = true;
+    }
+    if (rawName.includes("<")) {
+      this.required = true;
+    } else if (rawName.includes("[")) {
+      this.required = false;
+    } else {
+      this.isBoolean = true;
+    }
+  }
 }
 
-const deno = typeof window !== 'undefined' && window.Deno;
-const denoScriptPath = deno && typeof window !== 'undefined' && window.location.pathname;
-// Adds deno executable and script path to processArgs as "compatibility" layer for node
-// See https://github.com/cacjs/cac/issues/69
-const processArgs = deno ? ['deno', denoScriptPath].concat(Deno.args) : process.argv;
-const platformInfo = deno
-    ? `${Deno.build.os}-${Deno.build.arch} deno-${Deno.version.deno}`
-    : `${process.platform}-${process.arch} node-${process.version}`;
+const deno = typeof window !== "undefined" && window.Deno;
+const denoScriptPath = "__DENO_SCRIPT_PATH__";
+const processArgs = deno ? ["deno", denoScriptPath].concat(Deno.args) : process.argv;
+const platformInfo = deno ? `${Deno.build.os}-${Deno.build.arch} deno-${Deno.version.deno}` : `${process.platform}-${process.arch} node-${process.version}`;
 
 class Command {
-    constructor(rawName, description, config = {}, cli) {
-        this.rawName = rawName;
-        this.description = description;
-        this.config = config;
-        this.cli = cli;
-        this.options = [];
-        this.aliasNames = [];
-        this.name = removeBrackets(rawName);
-        this.args = findAllBrackets(rawName);
-        this.examples = [];
-    }
-    usage(text) {
-        this.usageText = text;
-        return this;
-    }
-    allowUnknownOptions() {
-        this.config.allowUnknownOptions = true;
-        return this;
-    }
-    ignoreOptionDefaultValue() {
-        this.config.ignoreOptionDefaultValue = true;
-        return this;
-    }
-    version(version, customFlags = '-v, --version') {
-        this.versionNumber = version;
-        this.option(customFlags, 'Display version number');
-        return this;
-    }
-    example(example) {
-        this.examples.push(example);
-        return this;
-    }
-    /**
-     * Add a option for this command
-     * @param rawName Raw option name(s)
-     * @param description Option description
-     * @param config Option config
-     */
-    option(rawName, description, config) {
-        const option = new Option(rawName, description, config);
-        this.options.push(option);
-        return this;
-    }
-    alias(name) {
-        this.aliasNames.push(name);
-        return this;
-    }
-    action(callback) {
-        this.commandAction = callback;
-        return this;
-    }
-    /**
-     * Check if a command name is matched by this command
-     * @param name Command name
-     */
-    isMatched(name) {
-        return this.name === name || this.aliasNames.includes(name);
-    }
-    get isDefaultCommand() {
-        return this.name === '' || this.aliasNames.includes('!');
-    }
-    get isGlobalCommand() {
-        return this instanceof GlobalCommand;
-    }
-    /**
-     * Check if an option is registered in this command
-     * @param name Option name
-     */
-    hasOption(name) {
-        name = name.split('.')[0];
-        return this.options.find(option => {
-            return option.names.includes(name);
-        });
-    }
-    outputHelp() {
-        const { name, commands } = this.cli;
-        const { versionNumber, options: globalOptions, helpCallback } = this.cli.globalCommand;
-        const sections = [
-            {
-                body: `${name}${versionNumber ? ` v${versionNumber}` : ''}`
-            }
-        ];
-        sections.push({
-            title: 'Usage',
-            body: `  $ ${name} ${this.usageText || this.rawName}`
-        });
-        const showCommands = (this.isGlobalCommand || this.isDefaultCommand) && commands.length > 0;
-        if (showCommands) {
-            const longestCommandName = findLongest(commands.map(command => command.rawName));
-            sections.push({
-                title: 'Commands',
-                body: commands
-                    .map(command => {
-                    return `  ${padRight(command.rawName, longestCommandName.length)}  ${command.description}`;
-                })
-                    .join('\n')
-            });
-            sections.push({
-                title: `For more info, run any command with the \`--help\` flag`,
-                body: commands
-                    .map(command => `  $ ${name}${command.name === '' ? '' : ` ${command.name}`} --help`)
-                    .join('\n')
-            });
-        }
-        const options = this.isGlobalCommand
-            ? globalOptions
-            : [...this.options, ...(globalOptions || [])];
-        if (options.length > 0) {
-            const longestOptionName = findLongest(options.map(option => option.rawName));
-            sections.push({
-                title: 'Options',
-                body: options
-                    .map(option => {
-                    return `  ${padRight(option.rawName, longestOptionName.length)}  ${option.description} ${option.config.default === undefined
-                        ? ''
-                        : `(default: ${option.config.default})`}`;
-                })
-                    .join('\n')
-            });
-        }
-        if (this.examples.length > 0) {
-            sections.push({
-                title: 'Examples',
-                body: this.examples
-                    .map(example => {
-                    if (typeof example === 'function') {
-                        return example(name);
-                    }
-                    return example;
-                })
-                    .join('\n')
-            });
-        }
-        if (helpCallback) {
-            helpCallback(sections);
-        }
-        console.log(sections
-            .map(section => {
-            return section.title
-                ? `${section.title}:\n${section.body}`
-                : section.body;
-        })
-            .join('\n\n'));
-    }
-    outputVersion() {
-        const { name } = this.cli;
-        const { versionNumber } = this.cli.globalCommand;
-        if (versionNumber) {
-            console.log(`${name}/${versionNumber} ${platformInfo}`);
-        }
-    }
-    checkRequiredArgs() {
-        const minimalArgsCount = this.args.filter(arg => arg.required).length;
-        if (this.cli.args.length < minimalArgsCount) {
-            throw new CACError(`missing required args for command \`${this.rawName}\``);
-        }
-    }
-    /**
-     * Check if the parsed options contain any unknown options
-     *
-     * Exit and output error when true
-     */
-    checkUnknownOptions() {
-        const { options, globalCommand } = this.cli;
-        if (!this.config.allowUnknownOptions) {
-            for (const name of Object.keys(options)) {
-                if (name !== '--' &&
-                    !this.hasOption(name) &&
-                    !globalCommand.hasOption(name)) {
-                    throw new CACError(`Unknown option \`${name.length > 1 ? `--${name}` : `-${name}`}\``);
-                }
-            }
-        }
-    }
-    /**
-     * Check if the required string-type options exist
-     */
-    checkOptionValue() {
-        const { options: parsedOptions, globalCommand } = this.cli;
-        const options = [...globalCommand.options, ...this.options];
-        for (const option of options) {
-            const value = parsedOptions[option.name.split('.')[0]];
-            // Check required option value
-            if (option.required) {
-                const hasNegated = options.some(o => o.negated && o.names.includes(option.name));
-                if (value === true || (value === false && !hasNegated)) {
-                    throw new CACError(`option \`${option.rawName}\` value is missing`);
-                }
-            }
-        }
-    }
+  constructor(rawName, description, config = {}, cli) {
+    this.rawName = rawName;
+    this.description = description;
+    this.config = config;
+    this.cli = cli;
+    this.options = [];
+    this.aliasNames = [];
+    this.name = removeBrackets(rawName);
+    this.args = findAllBrackets(rawName);
+    this.examples = [];
+  }
+  usage(text) {
+    this.usageText = text;
+    return this;
+  }
+  allowUnknownOptions() {
+    this.config.allowUnknownOptions = true;
+    return this;
+  }
+  ignoreOptionDefaultValue() {
+    this.config.ignoreOptionDefaultValue = true;
+    return this;
+  }
+  version(version, customFlags = "-v, --version") {
+    this.versionNumber = version;
+    this.option(customFlags, "Display version number");
+    return this;
+  }
+  example(example) {
+    this.examples.push(example);
+    return this;
+  }
+  option(rawName, description, config) {
+    const option = new Option(rawName, description, config);
+    this.options.push(option);
+    return this;
+  }
+  alias(name) {
+    this.aliasNames.push(name);
+    return this;
+  }
+  action(callback) {
+    this.commandAction = callback;
+    return this;
+  }
+  isMatched(name) {
+    return this.name === name || this.aliasNames.includes(name);
+  }
+  get isDefaultCommand() {
+    return this.name === "" || this.aliasNames.includes("!");
+  }
+  get isGlobalCommand() {
+    return this instanceof GlobalCommand;
+  }
+  hasOption(name) {
+    name = name.split(".")[0];
+    return this.options.find((option) => {
+      return option.names.includes(name);
+    });
+  }
+  outputHelp() {
+    const {name, commands} = this.cli;
+    const {versionNumber, options: globalOptions, helpCallback} = this.cli.globalCommand;
+    const sections = [{
+      body: `${name}${versionNumber ? ` v${versionNumber}` : ""}`
+    }];
+    sections.push({
+      title: "Usage",
+      body: `  $ ${name} ${this.usageText || this.rawName}`
+    });
+    const showCommands = (this.isGlobalCommand || this.isDefaultCommand) && commands.length > 0;
+    if (showCommands) {
+      const longestCommandName = findLongest(commands.map((command) => command.rawName));
+      sections.push({
+        title: "Commands",
+        body: commands.map((command) => {
+          return `  ${padRight(command.rawName, longestCommandName.length)}  ${command.description}`;
+        }).join("\n")
+      });
+      sections.push({
+        title: `For more info, run any command with the \`--help\` flag`,
+        body: commands.map((command) => `  $ ${name}${command.name === "" ? "" : ` ${command.name}`} --help`).join("\n")
+      });
+    }
+    const options = this.isGlobalCommand ? globalOptions : [...this.options, ...globalOptions || []];
+    if (options.length > 0) {
+      const longestOptionName = findLongest(options.map((option) => option.rawName));
+      sections.push({
+        title: "Options",
+        body: options.map((option) => {
+          return `  ${padRight(option.rawName, longestOptionName.length)}  ${option.description} ${option.config.default === void 0 ? "" : `(default: ${option.config.default})`}`;
+        }).join("\n")
+      });
+    }
+    if (this.examples.length > 0) {
+      sections.push({
+        title: "Examples",
+        body: this.examples.map((example) => {
+          if (typeof example === "function") {
+            return example(name);
+          }
+          return example;
+        }).join("\n")
+      });
+    }
+    if (helpCallback) {
+      helpCallback(sections);
+    }
+    console.log(sections.map((section) => {
+      return section.title ? `${section.title}:
+${section.body}` : section.body;
+    }).join("\n\n"));
+  }
+  outputVersion() {
+    const {name} = this.cli;
+    const {versionNumber} = this.cli.globalCommand;
+    if (versionNumber) {
+      console.log(`${name}/${versionNumber} ${platformInfo}`);
+    }
+  }
+  checkRequiredArgs() {
+    const minimalArgsCount = this.args.filter((arg) => arg.required).length;
+    if (this.cli.args.length < minimalArgsCount) {
+      throw new CACError(`missing required args for command \`${this.rawName}\``);
+    }
+  }
+  checkUnknownOptions() {
+    const {options, globalCommand} = this.cli;
+    if (!this.config.allowUnknownOptions) {
+      for (const name of Object.keys(options)) {
+        if (name !== "--" && !this.hasOption(name) && !globalCommand.hasOption(name)) {
+          throw new CACError(`Unknown option \`${name.length > 1 ? `--${name}` : `-${name}`}\``);
+        }
+      }
+    }
+  }
+  checkOptionValue() {
+    const {options: parsedOptions, globalCommand} = this.cli;
+    const options = [...globalCommand.options, ...this.options];
+    for (const option of options) {
+      const value = parsedOptions[option.name.split(".")[0]];
+      if (option.required) {
+        const hasNegated = options.some((o) => o.negated && o.names.includes(option.name));
+        if (value === true || value === false && !hasNegated) {
+          throw new CACError(`option \`${option.rawName}\` value is missing`);
+        }
+      }
+    }
+  }
 }
 class GlobalCommand extends Command {
-    constructor(cli) {
-        super('@@global@@', '', {}, cli);
-    }
+  constructor(cli) {
+    super("@@global@@", "", {}, cli);
+  }
 }
 
+let __assign = Object.assign;
 class CAC extends events.EventEmitter {
-    /**
-     * @param name The program name to display in help and version message
-     */
-    constructor(name = '') {
-        super();
-        this.name = name;
-        this.commands = [];
-        this.globalCommand = new GlobalCommand(this);
-        this.globalCommand.usage('<command> [options]');
-    }
-    /**
-     * Add a global usage text.
-     *
-     * This is not used by sub-commands.
-     */
-    usage(text) {
-        this.globalCommand.usage(text);
-        return this;
-    }
-    /**
-     * Add a sub-command
-     */
-    command(rawName, description, config) {
-        const command = new Command(rawName, description || '', config, this);
-        command.globalCommand = this.globalCommand;
-        this.commands.push(command);
-        return command;
-    }
-    /**
-     * Add a global CLI option.
-     *
-     * Which is also applied to sub-commands.
-     */
-    option(rawName, description, config) {
-        this.globalCommand.option(rawName, description, config);
-        return this;
-    }
-    /**
-     * Show help message when `-h, --help` flags appear.
-     *
-     */
-    help(callback) {
-        this.globalCommand.option('-h, --help', 'Display this message');
-        this.globalCommand.helpCallback = callback;
-        this.showHelpOnExit = true;
-        return this;
-    }
-    /**
-     * Show version number when `-v, --version` flags appear.
-     *
-     */
-    version(version, customFlags = '-v, --version') {
-        this.globalCommand.version(version, customFlags);
-        this.showVersionOnExit = true;
-        return this;
-    }
-    /**
-     * Add a global example.
-     *
-     * This example added here will not be used by sub-commands.
-     */
-    example(example) {
-        this.globalCommand.example(example);
-        return this;
-    }
-    /**
-     * Output the corresponding help message
-     * When a sub-command is matched, output the help message for the command
-     * Otherwise output the global one.
-     *
-     */
-    outputHelp() {
-        if (this.matchedCommand) {
-            this.matchedCommand.outputHelp();
-        }
-        else {
-            this.globalCommand.outputHelp();
-        }
-    }
-    /**
-     * Output the version number.
-     *
-     */
-    outputVersion() {
-        this.globalCommand.outputVersion();
-    }
-    setParsedInfo({ args, options }, matchedCommand, matchedCommandName) {
-        this.args = args;
-        this.options = options;
-        if (matchedCommand) {
-            this.matchedCommand = matchedCommand;
-        }
-        if (matchedCommandName) {
-            this.matchedCommandName = matchedCommandName;
-        }
-        return this;
-    }
-    /**
-     * Parse argv
-     */
-    parse(argv = processArgs, { 
-    /** Whether to run the action for matched command */
-    run = true } = {}) {
-        this.rawArgs = argv;
-        if (!this.name) {
-            this.name = argv[1] ? getFileName(argv[1]) : 'cli';
-        }
-        let shouldParse = true;
-        // Search sub-commands
-        for (const command of this.commands) {
-            const parsed = this.mri(argv.slice(2), command);
-            const commandName = parsed.args[0];
-            if (command.isMatched(commandName)) {
-                shouldParse = false;
-                const parsedInfo = Object.assign({}, parsed, { args: parsed.args.slice(1) });
-                this.setParsedInfo(parsedInfo, command, commandName);
-                this.emit(`command:${commandName}`, command);
-            }
-        }
-        if (shouldParse) {
-            // Search the default command
-            for (const command of this.commands) {
-                if (command.name === '') {
-                    shouldParse = false;
-                    const parsed = this.mri(argv.slice(2), command);
-                    this.setParsedInfo(parsed, command);
-                    this.emit(`command:!`, command);
-                }
-            }
-        }
-        if (shouldParse) {
-            const parsed = this.mri(argv.slice(2));
-            this.setParsedInfo(parsed);
-        }
-        if (this.options.help && this.showHelpOnExit) {
-            this.outputHelp();
-            run = false;
-        }
-        if (this.options.version && this.showVersionOnExit) {
-            this.outputVersion();
-            run = false;
-        }
-        const parsedArgv = { args: this.args, options: this.options };
-        if (run) {
-            this.runMatchedCommand();
-        }
-        if (!this.matchedCommand && this.args[0]) {
-            this.emit('command:*');
-        }
-        return parsedArgv;
-    }
-    mri(argv, 
-    /** Matched command */ command) {
-        // All added options
-        const cliOptions = [
-            ...this.globalCommand.options,
-            ...(command ? command.options : [])
-        ];
-        const mriOptions = getMriOptions(cliOptions);
-        // Extract everything after `--` since mri doesn't support it
-        let argsAfterDoubleDashes = [];
-        const doubleDashesIndex = argv.indexOf('--');
-        if (doubleDashesIndex > -1) {
-            argsAfterDoubleDashes = argv.slice(doubleDashesIndex + 1);
-            argv = argv.slice(0, doubleDashesIndex);
-        }
-        let parsed = lib(argv, mriOptions);
-        parsed = Object.keys(parsed).reduce((res, name) => {
-            return Object.assign({}, res, { [camelcaseOptionName(name)]: parsed[name] });
-        }, { _: [] });
-        const args = parsed._;
-        delete parsed._;
-        const options = {
-            '--': argsAfterDoubleDashes
-        };
-        // Set option default value
-        const ignoreDefault = command && command.config.ignoreOptionDefaultValue
-            ? command.config.ignoreOptionDefaultValue
-            : this.globalCommand.config.ignoreOptionDefaultValue;
-        let transforms = Object.create(null);
-        for (const cliOption of cliOptions) {
-            if (!ignoreDefault && cliOption.config.default !== undefined) {
-                for (const name of cliOption.names) {
-                    options[name] = cliOption.config.default;
-                }
-            }
-            // If options type is defined
-            if (Array.isArray(cliOption.config.type)) {
-                if (transforms[cliOption.name] === undefined) {
-                    transforms[cliOption.name] = Object.create(null);
-                    transforms[cliOption.name]['shouldTransform'] = true;
-                    transforms[cliOption.name]['transformFunction'] =
-                        cliOption.config.type[0];
-                }
-            }
-        }
-        // Set dot nested option values
-        for (const key of Object.keys(parsed)) {
-            const keys = key.split('.');
-            setDotProp(options, keys, parsed[key]);
-            setByType(options, transforms);
-        }
-        return {
-            args,
-            options
-        };
-    }
-    runMatchedCommand() {
-        const { args, options, matchedCommand: command } = this;
-        if (!command || !command.commandAction)
-            return;
-        command.checkUnknownOptions();
-        command.checkOptionValue();
-        command.checkRequiredArgs();
-        const actionArgs = [];
-        command.args.forEach((arg, index) => {
-            if (arg.variadic) {
-                actionArgs.push(args.slice(index));
-            }
-            else {
-                actionArgs.push(args[index]);
-            }
+  constructor(name = "") {
+    super();
+    this.name = name;
+    this.commands = [];
+    this.globalCommand = new GlobalCommand(this);
+    this.globalCommand.usage("<command> [options]");
+  }
+  usage(text) {
+    this.globalCommand.usage(text);
+    return this;
+  }
+  command(rawName, description, config) {
+    const command = new Command(rawName, description || "", config, this);
+    command.globalCommand = this.globalCommand;
+    this.commands.push(command);
+    return command;
+  }
+  option(rawName, description, config) {
+    this.globalCommand.option(rawName, description, config);
+    return this;
+  }
+  help(callback) {
+    this.globalCommand.option("-h, --help", "Display this message");
+    this.globalCommand.helpCallback = callback;
+    this.showHelpOnExit = true;
+    return this;
+  }
+  version(version, customFlags = "-v, --version") {
+    this.globalCommand.version(version, customFlags);
+    this.showVersionOnExit = true;
+    return this;
+  }
+  example(example) {
+    this.globalCommand.example(example);
+    return this;
+  }
+  outputHelp() {
+    if (this.matchedCommand) {
+      this.matchedCommand.outputHelp();
+    } else {
+      this.globalCommand.outputHelp();
+    }
+  }
+  outputVersion() {
+    this.globalCommand.outputVersion();
+  }
+  setParsedInfo({args, options}, matchedCommand, matchedCommandName) {
+    this.args = args;
+    this.options = options;
+    if (matchedCommand) {
+      this.matchedCommand = matchedCommand;
+    }
+    if (matchedCommandName) {
+      this.matchedCommandName = matchedCommandName;
+    }
+    return this;
+  }
+  parse(argv = processArgs, {run = true} = {}) {
+    this.rawArgs = argv;
+    if (!this.name) {
+      this.name = argv[1] ? getFileName(argv[1]) : "cli";
+    }
+    let shouldParse = true;
+    for (const command of this.commands) {
+      const parsed = this.mri(argv.slice(2), command);
+      const commandName = parsed.args[0];
+      if (command.isMatched(commandName)) {
+        shouldParse = false;
+        const parsedInfo = __assign(__assign({}, parsed), {
+          args: parsed.args.slice(1)
         });
-        actionArgs.push(options);
-        return command.commandAction.apply(this, actionArgs);
-    }
+        this.setParsedInfo(parsedInfo, command, commandName);
+        this.emit(`command:${commandName}`, command);
+      }
+    }
+    if (shouldParse) {
+      for (const command of this.commands) {
+        if (command.name === "") {
+          shouldParse = false;
+          const parsed = this.mri(argv.slice(2), command);
+          this.setParsedInfo(parsed, command);
+          this.emit(`command:!`, command);
+        }
+      }
+    }
+    if (shouldParse) {
+      const parsed = this.mri(argv.slice(2));
+      this.setParsedInfo(parsed);
+    }
+    if (this.options.help && this.showHelpOnExit) {
+      this.outputHelp();
+      run = false;
+    }
+    if (this.options.version && this.showVersionOnExit) {
+      this.outputVersion();
+      run = false;
+    }
+    const parsedArgv = {
+      args: this.args,
+      options: this.options
+    };
+    if (run) {
+      this.runMatchedCommand();
+    }
+    if (!this.matchedCommand && this.args[0]) {
+      this.emit("command:*");
+    }
+    return parsedArgv;
+  }
+  mri(argv, command) {
+    const cliOptions = [...this.globalCommand.options, ...command ? command.options : []];
+    const mriOptions = getMriOptions(cliOptions);
+    let argsAfterDoubleDashes = [];
+    const doubleDashesIndex = argv.indexOf("--");
+    if (doubleDashesIndex > -1) {
+      argsAfterDoubleDashes = argv.slice(doubleDashesIndex + 1);
+      argv = argv.slice(0, doubleDashesIndex);
+    }
+    let parsed = lib(argv, mriOptions);
+    parsed = Object.keys(parsed).reduce((res, name) => {
+      return __assign(__assign({}, res), {
+        [camelcaseOptionName(name)]: parsed[name]
+      });
+    }, {
+      _: []
+    });
+    const args = parsed._;
+    delete parsed._;
+    const options = {
+      "--": argsAfterDoubleDashes
+    };
+    const ignoreDefault = command && command.config.ignoreOptionDefaultValue ? command.config.ignoreOptionDefaultValue : this.globalCommand.config.ignoreOptionDefaultValue;
+    let transforms = Object.create(null);
+    for (const cliOption of cliOptions) {
+      if (!ignoreDefault && cliOption.config.default !== void 0) {
+        for (const name of cliOption.names) {
+          options[name] = cliOption.config.default;
+        }
+      }
+      if (Array.isArray(cliOption.config.type)) {
+        if (transforms[cliOption.name] === void 0) {
+          transforms[cliOption.name] = Object.create(null);
+          transforms[cliOption.name]["shouldTransform"] = true;
+          transforms[cliOption.name]["transformFunction"] = cliOption.config.type[0];
+        }
+      }
+    }
+    for (const key of Object.keys(parsed)) {
+      const keys = key.split(".");
+      setDotProp(options, keys, parsed[key]);
+      setByType(options, transforms);
+    }
+    return {
+      args,
+      options
+    };
+  }
+  runMatchedCommand() {
+    const {args, options, matchedCommand: command} = this;
+    if (!command || !command.commandAction)
+      return;
+    command.checkUnknownOptions();
+    command.checkOptionValue();
+    command.checkRequiredArgs();
+    const actionArgs = [];
+    command.args.forEach((arg, index) => {
+      if (arg.variadic) {
+        actionArgs.push(args.slice(index));
+      } else {
+        actionArgs.push(args[index]);
+      }
+    });
+    actionArgs.push(options);
+    return command.commandAction.apply(this, actionArgs);
+  }
 }
 
-/**
- * @param name The program name to display in help and version message
- */
-const cac = (name = '') => new CAC(name);
-if (typeof module !== 'undefined') {
-    module.exports = cac;
-    module.exports.default = cac;
-    module.exports.cac = cac;
+const cac = (name = "") => new CAC(name);
+if (typeof module !== "undefined") {
+  module.exports = cac;
+  module.exports.default = cac;
+  module.exports.cac = cac;
 }
 
 exports.cac = cac;
diff --git a/mod.js b/mod.js
deleted file mode 100644
index 64bb35e..0000000
--- a/mod.js
+++ /dev/null
@@ -1,1154 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-
-var R = typeof Reflect === 'object' ? Reflect : null;
-var ReflectApply = R && typeof R.apply === 'function'
-  ? R.apply
-  : function ReflectApply(target, receiver, args) {
-    return Function.prototype.apply.call(target, receiver, args);
-  };
-
-var ReflectOwnKeys;
-if (R && typeof R.ownKeys === 'function') {
-  ReflectOwnKeys = R.ownKeys;
-} else if (Object.getOwnPropertySymbols) {
-  ReflectOwnKeys = function ReflectOwnKeys(target) {
-    return Object.getOwnPropertyNames(target)
-      .concat(Object.getOwnPropertySymbols(target));
-  };
-} else {
-  ReflectOwnKeys = function ReflectOwnKeys(target) {
-    return Object.getOwnPropertyNames(target);
-  };
-}
-
-function ProcessEmitWarning(warning) {
-  if (console && console.warn) console.warn(warning);
-}
-
-var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
-  return value !== value;
-};
-
-function EventEmitter() {
-  EventEmitter.init.call(this);
-}
-var events = EventEmitter;
-
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
-
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._eventsCount = 0;
-EventEmitter.prototype._maxListeners = undefined;
-
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-var defaultMaxListeners = 10;
-
-Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
-  enumerable: true,
-  get: function() {
-    return defaultMaxListeners;
-  },
-  set: function(arg) {
-    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
-      throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
-    }
-    defaultMaxListeners = arg;
-  }
-});
-
-EventEmitter.init = function() {
-
-  if (this._events === undefined ||
-      this._events === Object.getPrototypeOf(this)._events) {
-    this._events = Object.create(null);
-    this._eventsCount = 0;
-  }
-
-  this._maxListeners = this._maxListeners || undefined;
-};
-
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
-  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {
-    throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
-  }
-  this._maxListeners = n;
-  return this;
-};
-
-function $getMaxListeners(that) {
-  if (that._maxListeners === undefined)
-    return EventEmitter.defaultMaxListeners;
-  return that._maxListeners;
-}
-
-EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
-  return $getMaxListeners(this);
-};
-
-EventEmitter.prototype.emit = function emit(type) {
-  var args = [];
-  for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
-  var doError = (type === 'error');
-
-  var events = this._events;
-  if (events !== undefined)
-    doError = (doError && events.error === undefined);
-  else if (!doError)
-    return false;
-
-  // If there is no 'error' event listener then throw.
-  if (doError) {
-    var er;
-    if (args.length > 0)
-      er = args[0];
-    if (er instanceof Error) {
-      // Note: The comments on the `throw` lines are intentional, they show
-      // up in Node's output if this results in an unhandled exception.
-      throw er; // Unhandled 'error' event
-    }
-    // At least give some kind of context to the user
-    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
-    err.context = er;
-    throw err; // Unhandled 'error' event
-  }
-
-  var handler = events[type];
-
-  if (handler === undefined)
-    return false;
-
-  if (typeof handler === 'function') {
-    ReflectApply(handler, this, args);
-  } else {
-    var len = handler.length;
-    var listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
-      ReflectApply(listeners[i], this, args);
-  }
-
-  return true;
-};
-
-function _addListener(target, type, listener, prepend) {
-  var m;
-  var events;
-  var existing;
-
-  if (typeof listener !== 'function') {
-    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
-  }
-
-  events = target._events;
-  if (events === undefined) {
-    events = target._events = Object.create(null);
-    target._eventsCount = 0;
-  } else {
-    // To avoid recursion in the case that type === "newListener"! Before
-    // adding it to the listeners, first emit "newListener".
-    if (events.newListener !== undefined) {
-      target.emit('newListener', type,
-                  listener.listener ? listener.listener : listener);
-
-      // Re-assign `events` because a newListener handler could have caused the
-      // this._events to be assigned to a new object
-      events = target._events;
-    }
-    existing = events[type];
-  }
-
-  if (existing === undefined) {
-    // Optimize the case of one listener. Don't need the extra array object.
-    existing = events[type] = listener;
-    ++target._eventsCount;
-  } else {
-    if (typeof existing === 'function') {
-      // Adding the second element, need to change to array.
-      existing = events[type] =
-        prepend ? [listener, existing] : [existing, listener];
-      // If we've already got an array, just append.
-    } else if (prepend) {
-      existing.unshift(listener);
-    } else {
-      existing.push(listener);
-    }
-
-    // Check for listener leak
-    m = $getMaxListeners(target);
-    if (m > 0 && existing.length > m && !existing.warned) {
-      existing.warned = true;
-      // No error code for this since it is a Warning
-      // eslint-disable-next-line no-restricted-syntax
-      var w = new Error('Possible EventEmitter memory leak detected. ' +
-                          existing.length + ' ' + String(type) + ' listeners ' +
-                          'added. Use emitter.setMaxListeners() to ' +
-                          'increase limit');
-      w.name = 'MaxListenersExceededWarning';
-      w.emitter = target;
-      w.type = type;
-      w.count = existing.length;
-      ProcessEmitWarning(w);
-    }
-  }
-
-  return target;
-}
-
-EventEmitter.prototype.addListener = function addListener(type, listener) {
-  return _addListener(this, type, listener, false);
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-
-EventEmitter.prototype.prependListener =
-    function prependListener(type, listener) {
-      return _addListener(this, type, listener, true);
-    };
-
-function onceWrapper() {
-  var args = [];
-  for (var i = 0; i < arguments.length; i++) args.push(arguments[i]);
-  if (!this.fired) {
-    this.target.removeListener(this.type, this.wrapFn);
-    this.fired = true;
-    ReflectApply(this.listener, this.target, args);
-  }
-}
-
-function _onceWrap(target, type, listener) {
-  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
-  var wrapped = onceWrapper.bind(state);
-  wrapped.listener = listener;
-  state.wrapFn = wrapped;
-  return wrapped;
-}
-
-EventEmitter.prototype.once = function once(type, listener) {
-  if (typeof listener !== 'function') {
-    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
-  }
-  this.on(type, _onceWrap(this, type, listener));
-  return this;
-};
-
-EventEmitter.prototype.prependOnceListener =
-    function prependOnceListener(type, listener) {
-      if (typeof listener !== 'function') {
-        throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
-      }
-      this.prependListener(type, _onceWrap(this, type, listener));
-      return this;
-    };
-
-// Emits a 'removeListener' event if and only if the listener was removed.
-EventEmitter.prototype.removeListener =
-    function removeListener(type, listener) {
-      var list, events, position, i, originalListener;
-
-      if (typeof listener !== 'function') {
-        throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
-      }
-
-      events = this._events;
-      if (events === undefined)
-        return this;
-
-      list = events[type];
-      if (list === undefined)
-        return this;
-
-      if (list === listener || list.listener === listener) {
-        if (--this._eventsCount === 0)
-          this._events = Object.create(null);
-        else {
-          delete events[type];
-          if (events.removeListener)
-            this.emit('removeListener', type, list.listener || listener);
-        }
-      } else if (typeof list !== 'function') {
-        position = -1;
-
-        for (i = list.length - 1; i >= 0; i--) {
-          if (list[i] === listener || list[i].listener === listener) {
-            originalListener = list[i].listener;
-            position = i;
-            break;
-          }
-        }
-
-        if (position < 0)
-          return this;
-
-        if (position === 0)
-          list.shift();
-        else {
-          spliceOne(list, position);
-        }
-
-        if (list.length === 1)
-          events[type] = list[0];
-
-        if (events.removeListener !== undefined)
-          this.emit('removeListener', type, originalListener || listener);
-      }
-
-      return this;
-    };
-
-EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
-
-EventEmitter.prototype.removeAllListeners =
-    function removeAllListeners(type) {
-      var listeners, events, i;
-
-      events = this._events;
-      if (events === undefined)
-        return this;
-
-      // not listening for removeListener, no need to emit
-      if (events.removeListener === undefined) {
-        if (arguments.length === 0) {
-          this._events = Object.create(null);
-          this._eventsCount = 0;
-        } else if (events[type] !== undefined) {
-          if (--this._eventsCount === 0)
-            this._events = Object.create(null);
-          else
-            delete events[type];
-        }
-        return this;
-      }
-
-      // emit removeListener for all listeners on all events
-      if (arguments.length === 0) {
-        var keys = Object.keys(events);
-        var key;
-        for (i = 0; i < keys.length; ++i) {
-          key = keys[i];
-          if (key === 'removeListener') continue;
-          this.removeAllListeners(key);
-        }
-        this.removeAllListeners('removeListener');
-        this._events = Object.create(null);
-        this._eventsCount = 0;
-        return this;
-      }
-
-      listeners = events[type];
-
-      if (typeof listeners === 'function') {
-        this.removeListener(type, listeners);
-      } else if (listeners !== undefined) {
-        // LIFO order
-        for (i = listeners.length - 1; i >= 0; i--) {
-          this.removeListener(type, listeners[i]);
-        }
-      }
-
-      return this;
-    };
-
-function _listeners(target, type, unwrap) {
-  var events = target._events;
-
-  if (events === undefined)
-    return [];
-
-  var evlistener = events[type];
-  if (evlistener === undefined)
-    return [];
-
-  if (typeof evlistener === 'function')
-    return unwrap ? [evlistener.listener || evlistener] : [evlistener];
-
-  return unwrap ?
-    unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
-}
-
-EventEmitter.prototype.listeners = function listeners(type) {
-  return _listeners(this, type, true);
-};
-
-EventEmitter.prototype.rawListeners = function rawListeners(type) {
-  return _listeners(this, type, false);
-};
-
-EventEmitter.listenerCount = function(emitter, type) {
-  if (typeof emitter.listenerCount === 'function') {
-    return emitter.listenerCount(type);
-  } else {
-    return listenerCount.call(emitter, type);
-  }
-};
-
-EventEmitter.prototype.listenerCount = listenerCount;
-function listenerCount(type) {
-  var events = this._events;
-
-  if (events !== undefined) {
-    var evlistener = events[type];
-
-    if (typeof evlistener === 'function') {
-      return 1;
-    } else if (evlistener !== undefined) {
-      return evlistener.length;
-    }
-  }
-
-  return 0;
-}
-
-EventEmitter.prototype.eventNames = function eventNames() {
-  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
-};
-
-function arrayClone(arr, n) {
-  var copy = new Array(n);
-  for (var i = 0; i < n; ++i)
-    copy[i] = arr[i];
-  return copy;
-}
-
-function spliceOne(list, index) {
-  for (; index + 1 < list.length; index++)
-    list[index] = list[index + 1];
-  list.pop();
-}
-
-function unwrapListeners(arr) {
-  var ret = new Array(arr.length);
-  for (var i = 0; i < ret.length; ++i) {
-    ret[i] = arr[i].listener || arr[i];
-  }
-  return ret;
-}
-var events_1 = events.EventEmitter;
-
-function toArr(any) {
-	return any == null ? [] : Array.isArray(any) ? any : [any];
-}
-
-function toVal(out, key, val, opts) {
-	var x, old=out[key], nxt=(
-		!!~opts.string.indexOf(key) ? (val == null || val === true ? '' : String(val))
-		: typeof val === 'boolean' ? val
-		: !!~opts.boolean.indexOf(key) ? (val === 'false' ? false : val === 'true' || (out._.push((x = +val,x * 0 === 0) ? x : val),!!val))
-		: (x = +val,x * 0 === 0) ? x : val
-	);
-	out[key] = old == null ? nxt : (Array.isArray(old) ? old.concat(nxt) : [old, nxt]);
-}
-
-var lib = function (args, opts) {
-	args = args || [];
-	opts = opts || {};
-
-	var k, arr, arg, name, val, out={ _:[] };
-	var i=0, j=0, idx=0, len=args.length;
-
-	const alibi = opts.alias !== void 0;
-	const strict = opts.unknown !== void 0;
-	const defaults = opts.default !== void 0;
-
-	opts.alias = opts.alias || {};
-	opts.string = toArr(opts.string);
-	opts.boolean = toArr(opts.boolean);
-
-	if (alibi) {
-		for (k in opts.alias) {
-			arr = opts.alias[k] = toArr(opts.alias[k]);
-			for (i=0; i < arr.length; i++) {
-				(opts.alias[arr[i]] = arr.concat(k)).splice(i, 1);
-			}
-		}
-	}
-
-	opts.boolean.forEach(key => {
-		opts.boolean = opts.boolean.concat(opts.alias[key] = opts.alias[key] || []);
-	});
-
-	opts.string.forEach(key => {
-		opts.string = opts.string.concat(opts.alias[key] = opts.alias[key] || []);
-	});
-
-	if (defaults) {
-		for (k in opts.default) {
-			opts.alias[k] = opts.alias[k] || [];
-			(opts[typeof opts.default[k]] || []).push(k);
-		}
-	}
-
-	const keys = strict ? Object.keys(opts.alias) : [];
-
-	for (i=0; i < len; i++) {
-		arg = args[i];
-
-		if (arg === '--') {
-			out._ = out._.concat(args.slice(++i));
-			break;
-		}
-
-		for (j=0; j < arg.length; j++) {
-			if (arg.charCodeAt(j) !== 45) break; // "-"
-		}
-
-		if (j === 0) {
-			out._.push(arg);
-		} else if (arg.substring(j, j + 3) === 'no-') {
-			name = arg.substring(j + 3);
-			if (strict && !~keys.indexOf(name)) {
-				return opts.unknown(arg);
-			}
-			out[name] = false;
-		} else {
-			for (idx=j+1; idx < arg.length; idx++) {
-				if (arg.charCodeAt(idx) === 61) break; // "="
-			}
-
-			name = arg.substring(j, idx);
-			val = arg.substring(++idx) || (i+1 === len || (''+args[i+1]).charCodeAt(0) === 45 || args[++i]);
-			arr = (j === 2 ? [name] : name);
-
-			for (idx=0; idx < arr.length; idx++) {
-				name = arr[idx];
-				if (strict && !~keys.indexOf(name)) return opts.unknown('-'.repeat(j) + name);
-				toVal(out, name, (idx + 1 < arr.length) || val, opts);
-			}
-		}
-	}
-
-	if (defaults) {
-		for (k in opts.default) {
-			if (out[k] === void 0) {
-				out[k] = opts.default[k];
-			}
-		}
-	}
-
-	if (alibi) {
-		for (k in out) {
-			arr = opts.alias[k] || [];
-			while (arr.length > 0) {
-				out[arr.shift()] = out[k];
-			}
-		}
-	}
-
-	return out;
-};
-
-const removeBrackets = (v) => v.replace(/[<[].+/, '').trim();
-const findAllBrackets = (v) => {
-    const ANGLED_BRACKET_RE_GLOBAL = /<([^>]+)>/g;
-    const SQUARE_BRACKET_RE_GLOBAL = /\[([^\]]+)\]/g;
-    const res = [];
-    const parse = (match) => {
-        let variadic = false;
-        let value = match[1];
-        if (value.startsWith('...')) {
-            value = value.slice(3);
-            variadic = true;
-        }
-        return {
-            required: match[0].startsWith('<'),
-            value,
-            variadic
-        };
-    };
-    let angledMatch;
-    while ((angledMatch = ANGLED_BRACKET_RE_GLOBAL.exec(v))) {
-        res.push(parse(angledMatch));
-    }
-    let squareMatch;
-    while ((squareMatch = SQUARE_BRACKET_RE_GLOBAL.exec(v))) {
-        res.push(parse(squareMatch));
-    }
-    return res;
-};
-const getMriOptions = (options) => {
-    const result = { alias: {}, boolean: [] };
-    for (const [index, option] of options.entries()) {
-        // We do not set default values in mri options
-        // Since its type (typeof) will be used to cast parsed arguments.
-        // Which mean `--foo foo` will be parsed as `{foo: true}` if we have `{default:{foo: true}}`
-        // Set alias
-        if (option.names.length > 1) {
-            result.alias[option.names[0]] = option.names.slice(1);
-        }
-        // Set boolean
-        if (option.isBoolean) {
-            if (option.negated) {
-                // For negated option
-                // We only set it to `boolean` type when there's no string-type option with the same name
-                const hasStringTypeOption = options.some((o, i) => {
-                    return (i !== index &&
-                        o.names.some(name => option.names.includes(name)) &&
-                        typeof o.required === 'boolean');
-                });
-                if (!hasStringTypeOption) {
-                    result.boolean.push(option.names[0]);
-                }
-            }
-            else {
-                result.boolean.push(option.names[0]);
-            }
-        }
-    }
-    return result;
-};
-const findLongest = (arr) => {
-    return arr.sort((a, b) => {
-        return a.length > b.length ? -1 : 1;
-    })[0];
-};
-const padRight = (str, length) => {
-    return str.length >= length ? str : `${str}${' '.repeat(length - str.length)}`;
-};
-const camelcase = (input) => {
-    return input.replace(/([a-z])-([a-z])/g, (_, p1, p2) => {
-        return p1 + p2.toUpperCase();
-    });
-};
-const setDotProp = (obj, keys, val) => {
-    let i = 0;
-    let length = keys.length;
-    let t = obj;
-    let x;
-    for (; i < length; ++i) {
-        x = t[keys[i]];
-        t = t[keys[i]] =
-            i === length - 1
-                ? val
-                : x != null
-                    ? x
-                    : !!~keys[i + 1].indexOf('.') || !(+keys[i + 1] > -1)
-                        ? {}
-                        : [];
-    }
-};
-const setByType = (obj, transforms) => {
-    for (const key of Object.keys(transforms)) {
-        const transform = transforms[key];
-        if (transform.shouldTransform) {
-            obj[key] = Array.prototype.concat.call([], obj[key]);
-            if (typeof transform.transformFunction === 'function') {
-                obj[key] = obj[key].map(transform.transformFunction);
-            }
-        }
-    }
-};
-const getFileName = (input) => {
-    const m = /([^\\\/]+)$/.exec(input);
-    return m ? m[1] : '';
-};
-const camelcaseOptionName = (name) => {
-    // Camelcase the option name
-    // Don't camelcase anything after the dot `.`
-    return name
-        .split('.')
-        .map((v, i) => {
-        return i === 0 ? camelcase(v) : v;
-    })
-        .join('.');
-};
-class CACError extends Error {
-    constructor(message) {
-        super(message);
-        this.name = this.constructor.name;
-        if (typeof Error.captureStackTrace === 'function') {
-            Error.captureStackTrace(this, this.constructor);
-        }
-        else {
-            this.stack = new Error(message).stack;
-        }
-    }
-}
-
-class Option {
-    constructor(rawName, description, config) {
-        this.rawName = rawName;
-        this.description = description;
-        this.config = Object.assign({}, config);
-        // You may use cli.option('--env.* [value]', 'desc') to denote a dot-nested option
-        rawName = rawName.replace(/\.\*/g, '');
-        this.negated = false;
-        this.names = removeBrackets(rawName)
-            .split(',')
-            .map((v) => {
-            let name = v.trim().replace(/^-{1,2}/, '');
-            if (name.startsWith('no-')) {
-                this.negated = true;
-                name = name.replace(/^no-/, '');
-            }
-            return camelcaseOptionName(name);
-        })
-            .sort((a, b) => (a.length > b.length ? 1 : -1)); // Sort names
-        // Use the longest name (last one) as actual option name
-        this.name = this.names[this.names.length - 1];
-        if (this.negated) {
-            this.config.default = true;
-        }
-        if (rawName.includes('<')) {
-            this.required = true;
-        }
-        else if (rawName.includes('[')) {
-            this.required = false;
-        }
-        else {
-            // No arg needed, it's boolean flag
-            this.isBoolean = true;
-        }
-    }
-}
-
-const deno = typeof window !== 'undefined' && window.Deno;
-const denoScriptPath = deno && typeof window !== 'undefined' && window.location.pathname;
-// Adds deno executable and script path to processArgs as "compatibility" layer for node
-// See https://github.com/cacjs/cac/issues/69
-const processArgs = deno ? ['deno', denoScriptPath].concat(Deno.args) : process.argv;
-const platformInfo = deno
-    ? `${Deno.build.os}-${Deno.build.arch} deno-${Deno.version.deno}`
-    : `${process.platform}-${process.arch} node-${process.version}`;
-
-class Command {
-    constructor(rawName, description, config = {}, cli) {
-        this.rawName = rawName;
-        this.description = description;
-        this.config = config;
-        this.cli = cli;
-        this.options = [];
-        this.aliasNames = [];
-        this.name = removeBrackets(rawName);
-        this.args = findAllBrackets(rawName);
-        this.examples = [];
-    }
-    usage(text) {
-        this.usageText = text;
-        return this;
-    }
-    allowUnknownOptions() {
-        this.config.allowUnknownOptions = true;
-        return this;
-    }
-    ignoreOptionDefaultValue() {
-        this.config.ignoreOptionDefaultValue = true;
-        return this;
-    }
-    version(version, customFlags = '-v, --version') {
-        this.versionNumber = version;
-        this.option(customFlags, 'Display version number');
-        return this;
-    }
-    example(example) {
-        this.examples.push(example);
-        return this;
-    }
-    /**
-     * Add a option for this command
-     * @param rawName Raw option name(s)
-     * @param description Option description
-     * @param config Option config
-     */
-    option(rawName, description, config) {
-        const option = new Option(rawName, description, config);
-        this.options.push(option);
-        return this;
-    }
-    alias(name) {
-        this.aliasNames.push(name);
-        return this;
-    }
-    action(callback) {
-        this.commandAction = callback;
-        return this;
-    }
-    /**
-     * Check if a command name is matched by this command
-     * @param name Command name
-     */
-    isMatched(name) {
-        return this.name === name || this.aliasNames.includes(name);
-    }
-    get isDefaultCommand() {
-        return this.name === '' || this.aliasNames.includes('!');
-    }
-    get isGlobalCommand() {
-        return this instanceof GlobalCommand;
-    }
-    /**
-     * Check if an option is registered in this command
-     * @param name Option name
-     */
-    hasOption(name) {
-        name = name.split('.')[0];
-        return this.options.find(option => {
-            return option.names.includes(name);
-        });
-    }
-    outputHelp() {
-        const { name, commands } = this.cli;
-        const { versionNumber, options: globalOptions, helpCallback } = this.cli.globalCommand;
-        const sections = [
-            {
-                body: `${name}${versionNumber ? ` v${versionNumber}` : ''}`
-            }
-        ];
-        sections.push({
-            title: 'Usage',
-            body: `  $ ${name} ${this.usageText || this.rawName}`
-        });
-        const showCommands = (this.isGlobalCommand || this.isDefaultCommand) && commands.length > 0;
-        if (showCommands) {
-            const longestCommandName = findLongest(commands.map(command => command.rawName));
-            sections.push({
-                title: 'Commands',
-                body: commands
-                    .map(command => {
-                    return `  ${padRight(command.rawName, longestCommandName.length)}  ${command.description}`;
-                })
-                    .join('\n')
-            });
-            sections.push({
-                title: `For more info, run any command with the \`--help\` flag`,
-                body: commands
-                    .map(command => `  $ ${name}${command.name === '' ? '' : ` ${command.name}`} --help`)
-                    .join('\n')
-            });
-        }
-        const options = this.isGlobalCommand
-            ? globalOptions
-            : [...this.options, ...(globalOptions || [])];
-        if (options.length > 0) {
-            const longestOptionName = findLongest(options.map(option => option.rawName));
-            sections.push({
-                title: 'Options',
-                body: options
-                    .map(option => {
-                    return `  ${padRight(option.rawName, longestOptionName.length)}  ${option.description} ${option.config.default === undefined
-                        ? ''
-                        : `(default: ${option.config.default})`}`;
-                })
-                    .join('\n')
-            });
-        }
-        if (this.examples.length > 0) {
-            sections.push({
-                title: 'Examples',
-                body: this.examples
-                    .map(example => {
-                    if (typeof example === 'function') {
-                        return example(name);
-                    }
-                    return example;
-                })
-                    .join('\n')
-            });
-        }
-        if (helpCallback) {
-            helpCallback(sections);
-        }
-        console.log(sections
-            .map(section => {
-            return section.title
-                ? `${section.title}:\n${section.body}`
-                : section.body;
-        })
-            .join('\n\n'));
-    }
-    outputVersion() {
-        const { name } = this.cli;
-        const { versionNumber } = this.cli.globalCommand;
-        if (versionNumber) {
-            console.log(`${name}/${versionNumber} ${platformInfo}`);
-        }
-    }
-    checkRequiredArgs() {
-        const minimalArgsCount = this.args.filter(arg => arg.required).length;
-        if (this.cli.args.length < minimalArgsCount) {
-            throw new CACError(`missing required args for command \`${this.rawName}\``);
-        }
-    }
-    /**
-     * Check if the parsed options contain any unknown options
-     *
-     * Exit and output error when true
-     */
-    checkUnknownOptions() {
-        const { options, globalCommand } = this.cli;
-        if (!this.config.allowUnknownOptions) {
-            for (const name of Object.keys(options)) {
-                if (name !== '--' &&
-                    !this.hasOption(name) &&
-                    !globalCommand.hasOption(name)) {
-                    throw new CACError(`Unknown option \`${name.length > 1 ? `--${name}` : `-${name}`}\``);
-                }
-            }
-        }
-    }
-    /**
-     * Check if the required string-type options exist
-     */
-    checkOptionValue() {
-        const { options: parsedOptions, globalCommand } = this.cli;
-        const options = [...globalCommand.options, ...this.options];
-        for (const option of options) {
-            const value = parsedOptions[option.name.split('.')[0]];
-            // Check required option value
-            if (option.required) {
-                const hasNegated = options.some(o => o.negated && o.names.includes(option.name));
-                if (value === true || (value === false && !hasNegated)) {
-                    throw new CACError(`option \`${option.rawName}\` value is missing`);
-                }
-            }
-        }
-    }
-}
-class GlobalCommand extends Command {
-    constructor(cli) {
-        super('@@global@@', '', {}, cli);
-    }
-}
-
-class CAC extends events_1 {
-    /**
-     * @param name The program name to display in help and version message
-     */
-    constructor(name = '') {
-        super();
-        this.name = name;
-        this.commands = [];
-        this.globalCommand = new GlobalCommand(this);
-        this.globalCommand.usage('<command> [options]');
-    }
-    /**
-     * Add a global usage text.
-     *
-     * This is not used by sub-commands.
-     */
-    usage(text) {
-        this.globalCommand.usage(text);
-        return this;
-    }
-    /**
-     * Add a sub-command
-     */
-    command(rawName, description, config) {
-        const command = new Command(rawName, description || '', config, this);
-        command.globalCommand = this.globalCommand;
-        this.commands.push(command);
-        return command;
-    }
-    /**
-     * Add a global CLI option.
-     *
-     * Which is also applied to sub-commands.
-     */
-    option(rawName, description, config) {
-        this.globalCommand.option(rawName, description, config);
-        return this;
-    }
-    /**
-     * Show help message when `-h, --help` flags appear.
-     *
-     */
-    help(callback) {
-        this.globalCommand.option('-h, --help', 'Display this message');
-        this.globalCommand.helpCallback = callback;
-        this.showHelpOnExit = true;
-        return this;
-    }
-    /**
-     * Show version number when `-v, --version` flags appear.
-     *
-     */
-    version(version, customFlags = '-v, --version') {
-        this.globalCommand.version(version, customFlags);
-        this.showVersionOnExit = true;
-        return this;
-    }
-    /**
-     * Add a global example.
-     *
-     * This example added here will not be used by sub-commands.
-     */
-    example(example) {
-        this.globalCommand.example(example);
-        return this;
-    }
-    /**
-     * Output the corresponding help message
-     * When a sub-command is matched, output the help message for the command
-     * Otherwise output the global one.
-     *
-     */
-    outputHelp() {
-        if (this.matchedCommand) {
-            this.matchedCommand.outputHelp();
-        }
-        else {
-            this.globalCommand.outputHelp();
-        }
-    }
-    /**
-     * Output the version number.
-     *
-     */
-    outputVersion() {
-        this.globalCommand.outputVersion();
-    }
-    setParsedInfo({ args, options }, matchedCommand, matchedCommandName) {
-        this.args = args;
-        this.options = options;
-        if (matchedCommand) {
-            this.matchedCommand = matchedCommand;
-        }
-        if (matchedCommandName) {
-            this.matchedCommandName = matchedCommandName;
-        }
-        return this;
-    }
-    /**
-     * Parse argv
-     */
-    parse(argv = processArgs, { 
-    /** Whether to run the action for matched command */
-    run = true } = {}) {
-        this.rawArgs = argv;
-        if (!this.name) {
-            this.name = argv[1] ? getFileName(argv[1]) : 'cli';
-        }
-        let shouldParse = true;
-        // Search sub-commands
-        for (const command of this.commands) {
-            const parsed = this.mri(argv.slice(2), command);
-            const commandName = parsed.args[0];
-            if (command.isMatched(commandName)) {
-                shouldParse = false;
-                const parsedInfo = Object.assign({}, parsed, { args: parsed.args.slice(1) });
-                this.setParsedInfo(parsedInfo, command, commandName);
-                this.emit(`command:${commandName}`, command);
-            }
-        }
-        if (shouldParse) {
-            // Search the default command
-            for (const command of this.commands) {
-                if (command.name === '') {
-                    shouldParse = false;
-                    const parsed = this.mri(argv.slice(2), command);
-                    this.setParsedInfo(parsed, command);
-                    this.emit(`command:!`, command);
-                }
-            }
-        }
-        if (shouldParse) {
-            const parsed = this.mri(argv.slice(2));
-            this.setParsedInfo(parsed);
-        }
-        if (this.options.help && this.showHelpOnExit) {
-            this.outputHelp();
-            run = false;
-        }
-        if (this.options.version && this.showVersionOnExit) {
-            this.outputVersion();
-            run = false;
-        }
-        const parsedArgv = { args: this.args, options: this.options };
-        if (run) {
-            this.runMatchedCommand();
-        }
-        if (!this.matchedCommand && this.args[0]) {
-            this.emit('command:*');
-        }
-        return parsedArgv;
-    }
-    mri(argv, 
-    /** Matched command */ command) {
-        // All added options
-        const cliOptions = [
-            ...this.globalCommand.options,
-            ...(command ? command.options : [])
-        ];
-        const mriOptions = getMriOptions(cliOptions);
-        // Extract everything after `--` since mri doesn't support it
-        let argsAfterDoubleDashes = [];
-        const doubleDashesIndex = argv.indexOf('--');
-        if (doubleDashesIndex > -1) {
-            argsAfterDoubleDashes = argv.slice(doubleDashesIndex + 1);
-            argv = argv.slice(0, doubleDashesIndex);
-        }
-        let parsed = lib(argv, mriOptions);
-        parsed = Object.keys(parsed).reduce((res, name) => {
-            return Object.assign({}, res, { [camelcaseOptionName(name)]: parsed[name] });
-        }, { _: [] });
-        const args = parsed._;
-        delete parsed._;
-        const options = {
-            '--': argsAfterDoubleDashes
-        };
-        // Set option default value
-        const ignoreDefault = command && command.config.ignoreOptionDefaultValue
-            ? command.config.ignoreOptionDefaultValue
-            : this.globalCommand.config.ignoreOptionDefaultValue;
-        let transforms = Object.create(null);
-        for (const cliOption of cliOptions) {
-            if (!ignoreDefault && cliOption.config.default !== undefined) {
-                for (const name of cliOption.names) {
-                    options[name] = cliOption.config.default;
-                }
-            }
-            // If options type is defined
-            if (Array.isArray(cliOption.config.type)) {
-                if (transforms[cliOption.name] === undefined) {
-                    transforms[cliOption.name] = Object.create(null);
-                    transforms[cliOption.name]['shouldTransform'] = true;
-                    transforms[cliOption.name]['transformFunction'] =
-                        cliOption.config.type[0];
-                }
-            }
-        }
-        // Set dot nested option values
-        for (const key of Object.keys(parsed)) {
-            const keys = key.split('.');
-            setDotProp(options, keys, parsed[key]);
-            setByType(options, transforms);
-        }
-        return {
-            args,
-            options
-        };
-    }
-    runMatchedCommand() {
-        const { args, options, matchedCommand: command } = this;
-        if (!command || !command.commandAction)
-            return;
-        command.checkUnknownOptions();
-        command.checkOptionValue();
-        command.checkRequiredArgs();
-        const actionArgs = [];
-        command.args.forEach((arg, index) => {
-            if (arg.variadic) {
-                actionArgs.push(args.slice(index));
-            }
-            else {
-                actionArgs.push(args[index]);
-            }
-        });
-        actionArgs.push(options);
-        return command.commandAction.apply(this, actionArgs);
-    }
-}
-
-/**
- * @param name The program name to display in help and version message
- */
-const cac = (name = '') => new CAC(name);
-if (typeof module !== 'undefined') {
-    module.exports = cac;
-    module.exports.default = cac;
-    module.exports.cac = cac;
-}
-
-export default cac;
-export { cac };
diff --git a/mod_test.js b/mod_test.ts
similarity index 59%
rename from mod_test.js
rename to mod_test.ts
index cb9f6ba..28e3bb9 100644
--- a/mod_test.js
+++ b/mod_test.ts
@@ -1,9 +1,11 @@
+// @deno-types="./mod.d.ts"
 import { cac } from './mod.js'
 
-const cli = cac()
+const cli = cac('my-program')
 
 cli.command('[any]', '').action(() => console.log('any'))
 
 cli.help()
+cli.version('0.0.0')
 
 cli.parse()
diff --git a/package.json b/package.json
index 481b6e8..3097ffb 100644
--- a/package.json
+++ b/package.json
@@ -7,17 +7,17 @@
     "type": "git"
   },
   "main": "dist/index.js",
-  "types": "types/index.d.ts",
+  "types": "dist/index.d.ts",
   "files": [
     "dist",
-    "types",
     "!**/__test__/**",
-    "/mod.js"
+    "/mod.js",
+    "/mod.d.ts"
   ],
   "scripts": {
     "test": "jest",
     "test:cov": "jest --coverage",
-    "build": "tsc -m ESNext && rollup -c",
+    "build": "rollup -c",
     "toc": "markdown-toc -i README.md",
     "prepublishOnly": "npm run build",
     "docs:api": "typedoc --out api-doc --readme none --exclude \"**/__test__/**\" --theme minimal"
@@ -25,6 +25,8 @@
   "author": "egoist <0x142857@gmail.com>",
   "license": "MIT",
   "devDependencies": {
+    "@rollup/plugin-commonjs": "^11.1.0",
+    "@rollup/plugin-node-resolve": "^7.1.3",
     "@types/execa": "^0.9.0",
     "@types/jest": "^23.3.9",
     "@types/mri": "^1.1.0",
@@ -38,14 +40,14 @@
     "markdown-toc": "^1.2.0",
     "mri": "^1.1.1",
     "prettier": "^1.15.2",
-    "rollup": "^1.32.0",
-    "@rollup/plugin-commonjs": "^11.0.2",
-    "@rollup/plugin-node-resolve": "^7.1.1",
+    "rollup": "^2.10.0",
+    "rollup-plugin-dts": "^1.4.3",
+    "rollup-plugin-esbuild": "^1.4.1",
     "semantic-release": "^15.12.1",
     "ts-jest": "^23.10.5",
     "ts-node": "^7.0.1",
-    "typedoc": "^0.13.0",
-    "typescript": "^3.1.6"
+    "typedoc": "^0.17.6",
+    "typescript": "^3.9.2"
   },
   "engines": {
     "node": ">=8"
diff --git a/rollup.config.js b/rollup.config.js
index 352df42..796e9c7 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,24 +1,56 @@
-function createConfig(target) {
+import nodeResolvePlugin from '@rollup/plugin-node-resolve'
+import esbuildPlugin from 'rollup-plugin-esbuild'
+import dtsPlugin from 'rollup-plugin-dts'
+
+function createConfig(target, dts) {
   const deno = target === 'deno'
+  let file = deno ? 'mod.js' : 'dist/index.js'
+  if (dts) {
+    file = file.replace('.js', '.d.ts')
+  }
   return {
-    input: 'lib/index.js',
+    input: 'src/index.ts',
     output: {
-      format: deno ? 'esm' : 'cjs',
-      file: deno ? 'mod.js' : 'dist/index.js',
+      format: deno || dts ? 'esm' : 'cjs',
+      file,
       exports: 'named'
     },
     plugins: [
-      require('@rollup/plugin-node-resolve')({
-        preferBuiltins: !deno
+      nodeResolvePlugin({
+        preferBuiltins: !deno,
+        mainFields: dts ? ['types', 'typings'] : ['module', 'main'],
+        extensions: dts ? ['.d.ts', '.ts'] : ['.js', '.json', '.mjs'],
+        customResolveOptions: {
+          moduleDirectory: dts
+            ? ['node_modules/@types', 'node_modules']
+            : 'node_modules'
+        }
       }),
-      require('@rollup/plugin-commonjs')({
-        namedExports: {
-          path: ['basename'],
-          events: ['EventEmitter']
+      !dts &&
+        require('@rollup/plugin-commonjs')({
+          namedExports: {
+            path: ['basename'],
+            events: ['EventEmitter']
+          }
+        }),
+      !dts &&
+        esbuildPlugin({
+          target: 'es2017'
+        }),
+      dts && dtsPlugin(),
+      deno && {
+        renderChunk(code) {
+          // Remove triple slashes reference since Deno doesn't support that
+          return code.replace(/^\/\/\/(.+)/, '')
         }
-      })
-    ]
+      }
+    ].filter(Boolean)
   }
 }
 
-export default [createConfig('node'), createConfig('deno')]
+export default [
+  createConfig('node'),
+  createConfig('deno'),
+  createConfig('node', true),
+  createConfig('deno', true)
+]
diff --git a/src/Command.ts b/src/Command.ts
index fa05ecf..91224e1 100644
--- a/src/Command.ts
+++ b/src/Command.ts
@@ -115,7 +115,7 @@ class Command {
     return this.name === '' || this.aliasNames.includes('!')
   }
 
-  get isGlobalCommand() {
+  get isGlobalCommand(): boolean {
     return this instanceof GlobalCommand
   }
 
diff --git a/src/node.ts b/src/node.ts
index 6f0824c..521bfe3 100644
--- a/src/node.ts
+++ b/src/node.ts
@@ -2,13 +2,9 @@ declare let window: any
 declare let Deno: any
 
 const deno = typeof window !== 'undefined' && window.Deno
-const denoScriptPath =
-  deno && typeof window !== 'undefined' && window.location.pathname
 
-// Adds deno executable and script path to processArgs as "compatibility" layer for node
-// See https://github.com/cacjs/cac/issues/69
 export const processArgs = deno
-  ? ['deno', denoScriptPath].concat(Deno.args)
+  ? ['deno', 'cli'].concat(Deno.args)
   : process.argv
 
 export const platformInfo = deno
diff --git a/yarn.lock b/yarn.lock
index 9f1e314..609ac98 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -357,34 +357,38 @@
     universal-user-agent "^2.0.0"
     url-template "^2.0.8"
 
-"@rollup/plugin-commonjs@^11.0.2":
-  version "11.0.2"
-  resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-11.0.2.tgz#837cc6950752327cb90177b608f0928a4e60b582"
-  integrity sha512-MPYGZr0qdbV5zZj8/2AuomVpnRVXRU5XKXb3HVniwRoRCreGlf5kOE081isNWeiLIi6IYkwTX9zE0/c7V8g81g==
+"@rollup/plugin-commonjs@^11.1.0":
+  version "11.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-commonjs/-/plugin-commonjs-11.1.0.tgz#60636c7a722f54b41e419e1709df05c7234557ef"
+  integrity sha512-Ycr12N3ZPN96Fw2STurD21jMqzKwL9QuFhms3SD7KKRK7oaXUsBU9Zt0jL/rOPHiPYisI21/rXGO3jr9BnLHUA==
   dependencies:
-    "@rollup/pluginutils" "^3.0.0"
+    "@rollup/pluginutils" "^3.0.8"
+    commondir "^1.0.1"
     estree-walker "^1.0.1"
+    glob "^7.1.2"
     is-reference "^1.1.2"
     magic-string "^0.25.2"
     resolve "^1.11.0"
 
-"@rollup/plugin-node-resolve@^7.1.1":
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/@rollup/plugin-node-resolve/-/plugin-node-resolve-7.1.1.tgz#8c6e59c4b28baf9d223028d0e450e06a485bb2b7"
-  integrity sha512-14ddhD7TnemeHE97a4rLOhobfYvUVcaYuqTnL8Ti7Jxi9V9Jr5LY7Gko4HZ5k4h4vqQM0gBQt6tsp9xXW94WPA==
+"@rollup/plugin-node-resolve@^7.1.3":
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-node-resolve/-/plugin-node-resolve-7.1.3.tgz#80de384edfbd7bfc9101164910f86078151a3eca"
+  integrity sha512-RxtSL3XmdTAE2byxekYLnx+98kEUOrPHF/KRVjLH+DEIHy6kjIw7YINQzn+NXiH/NTrQLAwYs0GWB+csWygA9Q==
   dependencies:
-    "@rollup/pluginutils" "^3.0.6"
+    "@rollup/pluginutils" "^3.0.8"
     "@types/resolve" "0.0.8"
     builtin-modules "^3.1.0"
     is-module "^1.0.0"
     resolve "^1.14.2"
 
-"@rollup/pluginutils@^3.0.0", "@rollup/pluginutils@^3.0.6":
-  version "3.0.8"
-  resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-3.0.8.tgz#4e94d128d94b90699e517ef045422960d18c8fde"
-  integrity sha512-rYGeAc4sxcZ+kPG/Tw4/fwJODC3IXHYDH4qusdN/b6aLw5LPUbzpecYbEJh4sVQGPFJxd2dBU4kc1H3oy9/bnw==
+"@rollup/pluginutils@^3.0.10", "@rollup/pluginutils@^3.0.8":
+  version "3.0.10"
+  resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-3.0.10.tgz#a659b9025920378494cd8f8c59fbf9b3a50d5f12"
+  integrity sha512-d44M7t+PjmMrASHbhgpSbVgtL6EFyX7J4mYxwQ/c5eoaE6N2VgCgEcWVzNnwycIloti+/MpwFr8qfw+nRw00sw==
   dependencies:
+    "@types/estree" "0.0.39"
     estree-walker "^1.0.1"
+    picomatch "^2.2.2"
 
 "@samverschueren/stream-to-observable@^0.3.0":
   version "0.3.0"
@@ -498,11 +502,6 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
-"@types/estree@*":
-  version "0.0.42"
-  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.42.tgz#8d0c1f480339efedb3e46070e22dd63e0430dd11"
-  integrity sha512-K1DPVvnBCPxzD+G51/cxVIoc2X8uUVl1zpJeE6iKcgHMj4+tbat5Xu4TjV7v2QSDbIeAfLi2hIk+u2+s0MlpUQ==
-
 "@types/estree@0.0.39":
   version "0.0.39"
   resolved "https://registry.npm.taobao.org/@types/estree/download/@types/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
@@ -520,14 +519,7 @@
   dependencies:
     "@types/node" "*"
 
-"@types/fs-extra@^5.0.3":
-  version "5.1.0"
-  resolved "https://registry.npm.taobao.org/@types/fs-extra/download/@types/fs-extra-5.1.0.tgz#2a325ef97901504a3828718c390d34b8426a10a1"
-  integrity sha1-KjJe+XkBUEo4KHGMOQ00uEJqEKE=
-  dependencies:
-    "@types/node" "*"
-
-"@types/glob@*", "@types/glob@^7.1.1":
+"@types/glob@^7.1.1":
   version "7.1.1"
   resolved "https://registry.npm.taobao.org/@types/glob/download/@types/glob-7.1.1.tgz#aa59a1c6e3fbc421e07ccd31a944c30eba521575"
   integrity sha1-qlmhxuP7xCHgfM0xqUTDDrpSFXU=
@@ -536,18 +528,6 @@
     "@types/minimatch" "*"
     "@types/node" "*"
 
-"@types/handlebars@^4.0.38":
-  version "4.1.0"
-  resolved "https://registry.npm.taobao.org/@types/handlebars/download/@types/handlebars-4.1.0.tgz#3fcce9bf88f85fe73dc932240ab3fb682c624850"
-  integrity sha1-P8zpv4j4X+c9yTIkCrP7aCxiSFA=
-  dependencies:
-    handlebars "*"
-
-"@types/highlight.js@^9.12.3":
-  version "9.12.3"
-  resolved "https://registry.npm.taobao.org/@types/highlight.js/download/@types/highlight.js-9.12.3.tgz#b672cfaac25cbbc634a0fd92c515f66faa18dbca"
-  integrity sha1-tnLPqsJcu8Y0oP2SxRX2b6oY28o=
-
 "@types/istanbul-lib-coverage@*", "@types/istanbul-lib-coverage@^2.0.0":
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.1.tgz#42995b446db9a48a11a07ec083499a860e9138ff"
@@ -573,17 +553,7 @@
   resolved "https://registry.npm.taobao.org/@types/jest/download/@types/jest-23.3.14.tgz#37daaf78069e7948520474c87b80092ea912520a"
   integrity sha1-N9qveAaeeUhSBHTIe4AJLqkSUgo=
 
-"@types/lodash@^4.14.110":
-  version "4.14.133"
-  resolved "https://registry.npm.taobao.org/@types/lodash/download/@types/lodash-4.14.133.tgz#430721c96da22dd1694443e68e6cec7ba1c1003d"
-  integrity sha1-QwchyW2iLdFpREPmjmzse6HBAD0=
-
-"@types/marked@^0.4.0":
-  version "0.4.2"
-  resolved "https://registry.npm.taobao.org/@types/marked/download/@types/marked-0.4.2.tgz#64a89e53ea37f61cc0f3ee1732c555c2dbf6452f"
-  integrity sha1-ZKieU+o39hzA8+4XMsVVwtv2RS8=
-
-"@types/minimatch@*", "@types/minimatch@3.0.3":
+"@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.npm.taobao.org/@types/minimatch/download/@types/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
   integrity sha1-PcoOPzOyAPx9ETnAzZbBJoyt/Z0=
@@ -610,14 +580,6 @@
   dependencies:
     "@types/node" "*"
 
-"@types/shelljs@^0.8.0":
-  version "0.8.5"
-  resolved "https://registry.npm.taobao.org/@types/shelljs/download/@types/shelljs-0.8.5.tgz#1e507b2f6d1f893269bd3e851ec24419ef9beeea"
-  integrity sha1-HlB7L20fiTJpvT6FHsJEGe+b7uo=
-  dependencies:
-    "@types/glob" "*"
-    "@types/node" "*"
-
 "@types/stack-utils@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
@@ -676,11 +638,6 @@ acorn@^6.0.1:
   resolved "https://registry.npm.taobao.org/acorn/download/acorn-6.1.1.tgz#7d25ae05bb8ad1f9b699108e1094ecd7884adc1f"
   integrity sha1-fSWuBbuK0fm2mRCOEJTs14hK3B8=
 
-acorn@^7.1.0:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.1.tgz#e35668de0b402f359de515c5482a1ab9f89a69bf"
-  integrity sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==
-
 agent-base@4, agent-base@^4.1.0, agent-base@~4.2.1:
   version "4.2.1"
   resolved "https://registry.npm.taobao.org/agent-base/download/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
@@ -1489,6 +1446,11 @@ commander@^2.14.1, commander@^2.9.0, commander@~2.20.0:
   resolved "https://registry.npm.taobao.org/commander/download/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
   integrity sha1-1YuytcHuj4ew00ACfp6U4iLFpCI=
 
+commondir@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
+  integrity sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=
+
 compare-func@^1.3.1:
   version "1.3.2"
   resolved "https://registry.npm.taobao.org/compare-func/download/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
@@ -2050,6 +2012,11 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
+esbuild@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.3.1.tgz#3ca7628fe47daa6ef0dcaf100ebad967006d2126"
+  integrity sha512-q8fqHk1FyaokBq85slRun9nwRaEm4vRc9dXSsNrEiz9+b8o1Wk5+7clDQ+cD67Ks/cDOCOytHjUwLatQkJqHQA==
+
 escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.4, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.npm.taobao.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fescape-string-regexp%2Fdownload%2Fescape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -2424,6 +2391,15 @@ fs-extra@^7.0.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-extra@^8.1.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-8.1.0.tgz#49d43c45a88cd9677668cb7be1b46efdb8d2e1c0"
+  integrity sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==
+  dependencies:
+    graceful-fs "^4.2.0"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-minipass@^1.2.5:
   version "1.2.6"
   resolved "https://registry.npm.taobao.org/fs-minipass/download/fs-minipass-1.2.6.tgz#2c5cc30ded81282bfe8a0d7c7c1853ddeb102c07"
@@ -2463,6 +2439,11 @@ fsevents@^1.2.7:
     bindings "^1.5.0"
     nan "^2.12.1"
 
+fsevents@~2.1.2:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.1.3.tgz#fb738703ae8d2f9fe900c33836ddebee8b97f23e"
+  integrity sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ==
+
 fstream@^1.0.0, fstream@^1.0.12:
   version "1.0.12"
   resolved "https://registry.npm.taobao.org/fstream/download/fstream-1.0.12.tgz#4e8ba8ee2d48be4f7d0de505455548eae5932045"
@@ -2677,6 +2658,11 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6
   resolved "https://registry.npm.taobao.org/graceful-fs/download/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha1-/7cD4QZuig7qpMi4C6klPu77+wA=
 
+graceful-fs@^4.2.0:
+  version "4.2.4"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.4.tgz#2256bde14d3632958c465ebc96dc467ca07a29fb"
+  integrity sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==
+
 gray-matter@^2.1.0:
   version "2.1.1"
   resolved "https://registry.npm.taobao.org/gray-matter/download/gray-matter-2.1.1.tgz#3042d9adec2a1ded6a7707a9ed2380f8a17a430e"
@@ -2693,7 +2679,7 @@ growly@^1.3.0:
   resolved "https://registry.npm.taobao.org/growly/download/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
   integrity sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=
 
-handlebars@*, handlebars@^4.0.6, handlebars@^4.1.0:
+handlebars@^4.1.0:
   version "4.1.2"
   resolved "https://registry.npm.taobao.org/handlebars/download/handlebars-4.1.2.tgz#b6b37c1ced0306b221e094fc7aca3ec23b131b67"
   integrity sha1-trN8HO0DBrIh4JT8eso+wjsTG2c=
@@ -2704,6 +2690,18 @@ handlebars@*, handlebars@^4.0.6, handlebars@^4.1.0:
   optionalDependencies:
     uglify-js "^3.1.4"
 
+handlebars@^4.7.6:
+  version "4.7.6"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.6.tgz#d4c05c1baf90e9945f77aa68a7a219aa4a7df74e"
+  integrity sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==
+  dependencies:
+    minimist "^1.2.5"
+    neo-async "^2.6.0"
+    source-map "^0.6.1"
+    wordwrap "^1.0.0"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npm.taobao.org/har-schema/download/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -2782,10 +2780,10 @@ has@^1.0.1, has@^1.0.3:
   dependencies:
     function-bind "^1.1.1"
 
-highlight.js@^9.0.0:
-  version "9.15.8"
-  resolved "https://registry.npm.taobao.org/highlight.js/download/highlight.js-9.15.8.tgz#f344fda123f36f1a65490e932cf90569e4999971"
-  integrity sha1-80T9oSPzbxplSQ6TLPkFaeSZmXE=
+highlight.js@^10.0.0:
+  version "10.0.3"
+  resolved "https://registry.yarnpkg.com/highlight.js/-/highlight.js-10.0.3.tgz#5effcc58420f113f279a0badb8ac50c4be06e63b"
+  integrity sha512-9FG7SSzv9yOY5CGGxfI6NDm7xLYtMOjKtPBxw7Zff3t5UcRcUNTGEeS8lNjhceL34KeetLMoGMFTGoaa83HwyQ==
 
 hook-std@^2.0.0:
   version "2.0.0"
@@ -4330,12 +4328,12 @@ lodash.without@~4.4.0:
   resolved "https://registry.npm.taobao.org/lodash.without/download/lodash.without-4.4.0.tgz#3cd4574a00b67bae373a94b748772640507b7aac"
   integrity sha1-PNRXSgC2e643OpS3SHcmQFB7eqw=
 
-lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.2.1:
+lodash@^4.17.11, lodash@^4.17.4, lodash@^4.2.1:
   version "4.17.14"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
   integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
 
-lodash@^4.17.13:
+lodash@^4.17.13, lodash@^4.17.15:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
@@ -4403,6 +4401,11 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
+lunr@^2.3.8:
+  version "2.3.8"
+  resolved "https://registry.yarnpkg.com/lunr/-/lunr-2.3.8.tgz#a8b89c31f30b5a044b97d2d28e2da191b6ba2072"
+  integrity sha512-oxMeX/Y35PNFuZoHp+jUj5OSEmLCaIH4KTFJh7a93cHBoFmpw2IoPs22VIz7vyO2YUnx2Tn9dzIwO2P/4quIRg==
+
 macos-release@^2.2.0:
   version "2.2.0"
   resolved "https://registry.npm.taobao.org/macos-release/download/macos-release-2.2.0.tgz#ab58d55dd4714f0a05ad4b0e90f4370fef5cdea8"
@@ -4528,10 +4531,10 @@ marked-terminal@^3.2.0:
     node-emoji "^1.4.1"
     supports-hyperlinks "^1.0.1"
 
-marked@^0.4.0:
-  version "0.4.0"
-  resolved "https://registry.npm.taobao.org/marked/download/marked-0.4.0.tgz#9ad2c2a7a1791f10a852e0112f77b571dce10c66"
-  integrity sha1-mtLCp6F5HxCoUuARL3e1cdzhDGY=
+marked@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/marked/-/marked-1.0.0.tgz#d35784245a04871e5988a491e28867362e941693"
+  integrity sha512-Wo+L1pWTVibfrSr+TTtMuiMfNzmZWiOPeO7rZsQUY5bgsxpHesBEcIWJloWVTFnrMXnf/TL30eTFSGJddmQAng==
 
 marked@^0.6.0:
   version "0.6.2"
@@ -4667,6 +4670,11 @@ minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
   resolved "https://registry.npm.taobao.org/minimist/download/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
 minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.npm.taobao.org/minimist/download/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
@@ -5529,6 +5537,11 @@ performance-now@^2.1.0:
   resolved "https://registry.npm.taobao.org/performance-now/download/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
   integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
+picomatch@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.2.tgz#21f333e9b6b8eaff02468f5146ea406d345f4dad"
+  integrity sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==
+
 pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.npm.taobao.org/pify/download/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
@@ -5625,10 +5638,10 @@ process-nextick-args@~2.0.0:
   resolved "https://registry.npm.taobao.org/process-nextick-args/download/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
   integrity sha1-o31zL0JxtKsa0HDTVQjoKQeI/6o=
 
-progress@^2.0.0:
+progress@^2.0.3:
   version "2.0.3"
-  resolved "https://registry.npm.taobao.org/progress/download/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
-  integrity sha1-foz42PW48jnBvGi+tOt4Vn1XLvg=
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
+  integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
 
 promise-inflight@^1.0.1, promise-inflight@~1.0.1:
   version "1.0.1"
@@ -6179,14 +6192,27 @@ rimraf@2, rimraf@^2.2.8, rimraf@^2.5.2, rimraf@^2.5.4, rimraf@^2.6.2, rimraf@^2.
   dependencies:
     glob "^7.1.3"
 
-rollup@^1.32.0:
-  version "1.32.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.32.0.tgz#c65ce134850aca1ce595fcac07d1dc5d53bf227c"
-  integrity sha512-ab2tF5pdDqm2zuI8j02ceyrJSScl9V2C24FgWQ1v1kTFTu1UrG5H0hpP++mDZlEFyZX4k0chtGEHU2i+pAzBgA==
+rollup-plugin-dts@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-dts/-/rollup-plugin-dts-1.4.3.tgz#debd56abd4c08bcaa619268927e13ad643a82bb5"
+  integrity sha512-/zs3KkyN7xEC3RJMrfcY0z1Hvn3TIuen4pjOh9ASAWMcoXsMNVnZZIO75izE8VyWopSJrNz3Rm4EXF2gjqvt5A==
+  optionalDependencies:
+    "@babel/code-frame" "^7.8.3"
+
+rollup-plugin-esbuild@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-esbuild/-/rollup-plugin-esbuild-1.4.1.tgz#b388ebd4cda1198208d7746feea7656d485019b0"
+  integrity sha512-gTzKtVo/OiOOe6pwRFHQCyCtEeYxcxLmjpqMiT4TnwXtPdF8RNP9c5wh/NZPztQydcMdEe1W+TO7poXwbLQekw==
   dependencies:
-    "@types/estree" "*"
-    "@types/node" "*"
-    acorn "^7.1.0"
+    "@rollup/pluginutils" "^3.0.10"
+    esbuild "^0.3.0"
+
+rollup@^2.10.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.10.0.tgz#73332273fa177cd85c1042659dee6f103761be0d"
+  integrity sha512-7BmpEfUN9P6esJzWIn3DmR//90mW6YwYB1t3y48LpF8ITpYtL8s1kEirMKqUu44dVH/6a/rs0EuwYVL3FuRDoA==
+  optionalDependencies:
+    fsevents "~2.1.2"
 
 rsvp@^4.8.4:
   version "4.8.5"
@@ -6370,10 +6396,10 @@ shebang-regex@^1.0.0:
   resolved "https://registry.npm.taobao.org/shebang-regex/download/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
-shelljs@^0.8.2:
-  version "0.8.3"
-  resolved "https://registry.npm.taobao.org/shelljs/download/shelljs-0.8.3.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fshelljs%2Fdownload%2Fshelljs-0.8.3.tgz#a7f3319520ebf09ee81275b2368adb286659b097"
-  integrity sha1-p/MxlSDr8J7oEnWyNorbKGZZsJc=
+shelljs@^0.8.4:
+  version "0.8.4"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.4.tgz#de7684feeb767f8716b326078a8a00875890e3c2"
+  integrity sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -7084,43 +7110,33 @@ typedarray@^0.0.6:
   resolved "https://registry.npm.taobao.org/typedarray/download/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typedoc-default-themes@^0.5.0:
-  version "0.5.0"
-  resolved "https://registry.npm.taobao.org/typedoc-default-themes/download/typedoc-default-themes-0.5.0.tgz#6dc2433e78ed8bea8e887a3acde2f31785bd6227"
-  integrity sha1-bcJDPnjti+qOiHo6zeLzF4W9Yic=
-
-typedoc@^0.13.0:
-  version "0.13.0"
-  resolved "https://registry.npm.taobao.org/typedoc/download/typedoc-0.13.0.tgz#9efdf352bd54873955cd161bd4b75f24a8c59dde"
-  integrity sha1-nv3zUr1UhzlVzRYb1LdfJKjFnd4=
-  dependencies:
-    "@types/fs-extra" "^5.0.3"
-    "@types/handlebars" "^4.0.38"
-    "@types/highlight.js" "^9.12.3"
-    "@types/lodash" "^4.14.110"
-    "@types/marked" "^0.4.0"
-    "@types/minimatch" "3.0.3"
-    "@types/shelljs" "^0.8.0"
-    fs-extra "^7.0.0"
-    handlebars "^4.0.6"
-    highlight.js "^9.0.0"
-    lodash "^4.17.10"
-    marked "^0.4.0"
+typedoc-default-themes@^0.10.1:
+  version "0.10.1"
+  resolved "https://registry.yarnpkg.com/typedoc-default-themes/-/typedoc-default-themes-0.10.1.tgz#eb27b7d689457c7ec843e47ec0d3e500581296a7"
+  integrity sha512-SuqAQI0CkwhqSJ2kaVTgl37cWs733uy9UGUqwtcds8pkFK8oRF4rZmCq+FXTGIb9hIUOu40rf5Kojg0Ha6akeg==
+  dependencies:
+    lunr "^2.3.8"
+
+typedoc@^0.17.6:
+  version "0.17.6"
+  resolved "https://registry.yarnpkg.com/typedoc/-/typedoc-0.17.6.tgz#cab87a72c10e05429016d659a4c3071a5a3ffb61"
+  integrity sha512-pQiYnhG3yJk7939cv2n8uFoTsSgy5Hfiw0dgOQYa9nT9Ya1013dMctQdAXMj8JbNu7KhcauQyq9Zql9D/TziLw==
+  dependencies:
+    fs-extra "^8.1.0"
+    handlebars "^4.7.6"
+    highlight.js "^10.0.0"
+    lodash "^4.17.15"
+    lunr "^2.3.8"
+    marked "1.0.0"
     minimatch "^3.0.0"
-    progress "^2.0.0"
-    shelljs "^0.8.2"
-    typedoc-default-themes "^0.5.0"
-    typescript "3.1.x"
+    progress "^2.0.3"
+    shelljs "^0.8.4"
+    typedoc-default-themes "^0.10.1"
 
-typescript@3.1.x:
-  version "3.1.6"
-  resolved "https://registry.npm.taobao.org/typescript/download/typescript-3.1.6.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Ftypescript%2Fdownload%2Ftypescript-3.1.6.tgz#b6543a83cfc8c2befb3f4c8fba6896f5b0c9be68"
-  integrity sha1-tlQ6g8/Iwr77P0yPumiW9bDJvmg=
-
-typescript@^3.1.6:
-  version "3.5.1"
-  resolved "https://registry.npm.taobao.org/typescript/download/typescript-3.5.1.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Ftypescript%2Fdownload%2Ftypescript-3.5.1.tgz#ba72a6a600b2158139c5dd8850f700e231464202"
-  integrity sha1-unKmpgCyFYE5xd2IUPcA4jFGQgI=
+typescript@^3.9.2:
+  version "3.9.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.2.tgz#64e9c8e9be6ea583c54607677dd4680a1cf35db9"
+  integrity sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==
 
 uglify-js@^3.1.4:
   version "3.6.0"
@@ -7475,16 +7491,16 @@ word-wrap@^1.0.3:
   resolved "https://registry.npm.taobao.org/word-wrap/download/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha1-YQY29rH3A4kb00dxzLF/uTtHB5w=
 
+wordwrap@^1.0.0, wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.npm.taobao.org/wordwrap/download/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
+
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.npm.taobao.org/wordwrap/download/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
   integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
 
-wordwrap@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.npm.taobao.org/wordwrap/download/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
-  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
-
 worker-farm@^1.6.0:
   version "1.7.0"
   resolved "https://registry.npm.taobao.org/worker-farm/download/worker-farm-1.7.0.tgz#26a94c5391bbca926152002f69b84a4bf772e5a8"