fix(parseResponse): revert the changes from parseResponse

src/contract/default.ts

@@ -17,7 +17,6 @@ import {
   Overrides,
   ParsedStruct,
   Result,
-  ResultAccessor,
   StructAbi,
 } from '../types';
 import { BigNumberish, toBN, toFelt } from '../utils/number';
@@ -524,10 +523,7 @@ export class Contract implements ContractInterface {
    * @param response  - response from the method
    * @return - parsed response corresponding to the abi
    */
-  protected parseResponse(method: string, response?: string[]): Result {
-    if (!response) {
-      return undefined;
-    }
+  protected parseResponse(method: string, response: string[]): Result {
     const { outputs } = this.abi.find((abi) => abi.name === method) as FunctionAbi;
     const responseIterator = response.flat()[Symbol.iterator]();
     const resultObject = outputs.flat().reduce((acc, output) => {
@@ -541,7 +537,7 @@ export class Contract implements ContractInterface {
       acc.push(value);
       acc[key] = value;
       return acc;
-    }, [] as ResultAccessor);
+    }, [] as Result);
   }
 
   public invoke(

src/types/contract.ts

@@ -1,6 +1,5 @@
 export type AsyncContractFunction<T = any> = (...args: Array<any>) => Promise<T>;
 export type ContractFunction = (...args: Array<any>) => any;
-export interface ResultAccessor extends Array<any> {
+export interface Result extends Array<any> {
   [key: string]: any;
 }
-export type Result = ResultAccessor | undefined;