diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 303337d..f71ec93 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        composer: [install, "update", "update --prefer-lowest"]
         php: ${{ fromJson(needs.supported-versions-matrix.outputs.version) }}
     steps:
       - name: Checkout
@@ -45,9 +44,10 @@ jobs:
       - name: Install Composer dependencies
         run: |
           composer config --unset platform.php
-          composer update --lock
-          composer ${{ matrix.composer }} --no-progress --no-interaction --no-suggest --optimize-autoloader --ansi
+          rm composer.lock
+          composer install --no-progress --no-interaction --optimize-autoloader --ansi
       - name: Test
         run: |
           ./vendor/bin/phpunit --coverage-text
+          php examples/return-class/ping.php
           php benchmark/memory.php
diff --git a/composer.json b/composer.json
index 9922925..faf3181 100644
--- a/composer.json
+++ b/composer.json
@@ -12,10 +12,10 @@
     "php": "^8.0 || ^7.0 || ^5.4",
     "evenement/evenement": "^3.0 || ^2.0",
     "react/event-loop": "^1.1",
-    "wyrihaximus/cpu-core-detector": "^1.0.2",
-    "wyrihaximus/file-descriptors": "^1.0 || ^0.1",
-    "wyrihaximus/react-child-process-messenger": "^2.10",
-    "wyrihaximus/ticking-promise": "^1.5"
+    "wyrihaximus/cpu-core-detector": "^2 || ^1.0.2",
+    "wyrihaximus/file-descriptors": "^2 || ^1.0 || ^0.1",
+    "wyrihaximus/react-child-process-messenger": "^3 || ^2.10",
+    "wyrihaximus/ticking-promise": "^2 || ^1.5"
   },
   "require-dev": {
     "clue/block-react": "^1.3",
diff --git a/composer.lock b/composer.lock
index a9bffcc..4ac40e0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,24 +4,25 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "552228da05a75699929cf7420b0fd911",
+    "content-hash": "a6d35283876aecfec5f929318ec2cab3",
     "packages": [
         {
             "name": "cakephp/utility",
-            "version": "3.4.0",
+            "version": "3.4.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/cakephp/utility.git",
-                "reference": "f527036c3fb1b1f76e18f663acfd95ed62ee4aa1"
+                "reference": "f194ce6c83f54d96ce8ae0020b5f58fa850a8ef4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/cakephp/utility/zipball/f527036c3fb1b1f76e18f663acfd95ed62ee4aa1",
-                "reference": "f527036c3fb1b1f76e18f663acfd95ed62ee4aa1",
+                "url": "https://api.github.com/repos/cakephp/utility/zipball/f194ce6c83f54d96ce8ae0020b5f58fa850a8ef4",
+                "reference": "f194ce6c83f54d96ce8ae0020b5f58fa850a8ef4",
                 "shasum": ""
             },
             "suggest": {
-                "ext-intl": "To use Text::transliterate() or Text::slug()"
+                "ext-intl": "To use Text::transliterate() or Text::slug()",
+                "lib-ICU": "To use Text::transliterate() or Text::slug()"
             },
             "type": "library",
             "autoload": {
@@ -39,33 +40,41 @@
             "authors": [
                 {
                     "name": "CakePHP Community",
-                    "homepage": "http://cakephp.org"
+                    "homepage": "https://cakephp.org"
                 }
             ],
             "description": "CakePHP Utility classes such as Inflector, String, Hash, and Security",
             "support": {
-                "source": "https://github.com/cakephp/utility/tree/3.4.0-RC4"
+                "source": "https://github.com/cakephp/utility/tree/3.4.6"
             },
-            "time": "2017-01-28T17:17:50+00:00"
+            "time": "2017-04-18T04:05:20+00:00"
         },
         {
             "name": "doctrine/inflector",
-            "version": "v1.0",
+            "version": "v1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/inflector.git",
-                "reference": "54b8333d2a5682afdc690060c1cf384ba9f47f08"
+                "reference": "90b2128806bfde671b6952ab8bea493942c1fdae"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/inflector/zipball/54b8333d2a5682afdc690060c1cf384ba9f47f08",
-                "reference": "54b8333d2a5682afdc690060c1cf384ba9f47f08",
+                "url": "https://api.github.com/repos/doctrine/inflector/zipball/90b2128806bfde671b6952ab8bea493942c1fdae",
+                "reference": "90b2128806bfde671b6952ab8bea493942c1fdae",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.2"
             },
+            "require-dev": {
+                "phpunit/phpunit": "4.*"
+            },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1.x-dev"
+                }
+            },
             "autoload": {
                 "psr-0": {
                     "Doctrine\\Common\\Inflector\\": "lib/"
@@ -76,17 +85,6 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Jonathan Wage",
-                    "email": "jonwage@gmail.com",
-                    "homepage": "http://www.jwage.com/",
-                    "role": "Creator"
-                },
-                {
-                    "name": "Guilherme Blanco",
-                    "email": "guilhermeblanco@gmail.com",
-                    "homepage": "http://www.instaclick.com"
-                },
                 {
                     "name": "Roman Borschel",
                     "email": "roman@code-factory.org"
@@ -95,25 +93,31 @@
                     "name": "Benjamin Eberlei",
                     "email": "kontakt@beberlei.de"
                 },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
                 {
                     "name": "Johannes Schmitt",
-                    "email": "schmittjoh@gmail.com",
-                    "homepage": "https://github.com/schmittjoh",
-                    "role": "Developer of wrapped JMSSerializerBundle"
+                    "email": "schmittjoh@gmail.com"
                 }
             ],
             "description": "Common String Manipulations with regard to casing and singular/plural rules.",
             "homepage": "http://www.doctrine-project.org",
             "keywords": [
                 "inflection",
-                "pluarlize",
-                "singuarlize",
+                "pluralize",
+                "singularize",
                 "string"
             ],
             "support": {
-                "source": "https://github.com/doctrine/inflector/tree/v1.0"
+                "source": "https://github.com/doctrine/inflector/tree/master"
             },
-            "time": "2013-01-10T21:49:15+00:00"
+            "time": "2015-11-06T14:35:42+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -175,21 +179,24 @@
         },
         {
             "name": "evenement/evenement",
-            "version": "v2.0.0",
+            "version": "v2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/igorw/evenement.git",
-                "reference": "f6e843799fd4f4184d54d8fc7b5b3551c9fa803e"
+                "reference": "6ba9a777870ab49f417e703229d53931ed40fd7a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/igorw/evenement/zipball/f6e843799fd4f4184d54d8fc7b5b3551c9fa803e",
-                "reference": "f6e843799fd4f4184d54d8fc7b5b3551c9fa803e",
+                "url": "https://api.github.com/repos/igorw/evenement/zipball/6ba9a777870ab49f417e703229d53931ed40fd7a",
+                "reference": "6ba9a777870ab49f417e703229d53931ed40fd7a",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.4.0"
             },
+            "require-dev": {
+                "phpunit/phpunit": "^6.0||^5.7||^4.8.35"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
@@ -208,8 +215,7 @@
             "authors": [
                 {
                     "name": "Igor Wiedler",
-                    "email": "igor@wiedler.ch",
-                    "homepage": "http://wiedler.ch/igor/"
+                    "email": "igor@wiedler.ch"
                 }
             ],
             "description": "Événement is a very simple event dispatching library for PHP",
@@ -219,34 +225,34 @@
             ],
             "support": {
                 "issues": "https://github.com/igorw/evenement/issues",
-                "source": "https://github.com/igorw/evenement/tree/v2.0.0"
+                "source": "https://github.com/igorw/evenement/tree/master"
             },
-            "time": "2012-11-02T14:49:47+00:00"
+            "time": "2017-07-17T17:39:19+00:00"
         },
         {
             "name": "indigophp/hash-compat",
-            "version": "v1.0.0",
+            "version": "v1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/indigophp/hash-compat.git",
-                "reference": "3ebe746728fe743bb6b1fcad3f71bda37a69d68a"
+                "reference": "43a19f42093a0cd2d11874dff9d891027fc42214"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/indigophp/hash-compat/zipball/3ebe746728fe743bb6b1fcad3f71bda37a69d68a",
-                "reference": "3ebe746728fe743bb6b1fcad3f71bda37a69d68a",
+                "url": "https://api.github.com/repos/indigophp/hash-compat/zipball/43a19f42093a0cd2d11874dff9d891027fc42214",
+                "reference": "43a19f42093a0cd2d11874dff9d891027fc42214",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": ">=5.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.4.0"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-develop": "1.1-dev"
+                    "dev-master": "1.2-dev"
                 }
             },
             "autoload": {
@@ -276,20 +282,20 @@
                 "issues": "https://github.com/indigophp/hash-compat/issues",
                 "source": "https://github.com/indigophp/hash-compat/tree/master"
             },
-            "time": "2015-01-09T06:20:04+00:00"
+            "time": "2015-08-22T07:03:35+00:00"
         },
         {
             "name": "paragonie/random_compat",
-            "version": "v2.0.0",
+            "version": "v2.0.19",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paragonie/random_compat.git",
-                "reference": "321a59fed499a5624b0e40cb5c824ae6116e0c18"
+                "reference": "446fc9faa5c2a9ddf65eb7121c0af7e857295241"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/321a59fed499a5624b0e40cb5c824ae6116e0c18",
-                "reference": "321a59fed499a5624b0e40cb5c824ae6116e0c18",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/446fc9faa5c2a9ddf65eb7121c0af7e857295241",
+                "reference": "446fc9faa5c2a9ddf65eb7121c0af7e857295241",
                 "shasum": ""
             },
             "require": {
@@ -321,6 +327,7 @@
             "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
             "keywords": [
                 "csprng",
+                "polyfill",
                 "pseudorandom",
                 "random"
             ],
@@ -329,74 +336,108 @@
                 "issues": "https://github.com/paragonie/random_compat/issues",
                 "source": "https://github.com/paragonie/random_compat"
             },
-            "time": "2016-03-18T17:17:33+00:00"
+            "time": "2020-10-15T10:06:57+00:00"
         },
         {
             "name": "react/cache",
-            "version": "v0.4.0",
+            "version": "v1.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/cache.git",
-                "reference": "9882ab5d8b00617baae83c6996f5a34668c11beb"
+                "reference": "4bf736a2cccec7298bdf745db77585966fc2ca7e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/cache/zipball/9882ab5d8b00617baae83c6996f5a34668c11beb",
-                "reference": "9882ab5d8b00617baae83c6996f5a34668c11beb",
+                "url": "https://api.github.com/repos/reactphp/cache/zipball/4bf736a2cccec7298bdf745db77585966fc2ca7e",
+                "reference": "4bf736a2cccec7298bdf745db77585966fc2ca7e",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.4.0",
-                "react/promise": "~2.0"
+                "php": ">=5.3.0",
+                "react/promise": "^3.0 || ^2.0 || ^1.1"
             },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "0.4-dev"
-                }
+            "require-dev": {
+                "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35"
             },
+            "type": "library",
             "autoload": {
                 "psr-4": {
-                    "React\\Cache\\": ""
+                    "React\\Cache\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
-            "description": "Async caching.",
+            "authors": [
+                {
+                    "name": "Christian Lück",
+                    "email": "christian@clue.engineering",
+                    "homepage": "https://clue.engineering/"
+                },
+                {
+                    "name": "Cees-Jan Kiewiet",
+                    "email": "reactphp@ceesjankiewiet.nl",
+                    "homepage": "https://wyrihaximus.net/"
+                },
+                {
+                    "name": "Jan Sorgalla",
+                    "email": "jsorgalla@gmail.com",
+                    "homepage": "https://sorgalla.com/"
+                },
+                {
+                    "name": "Chris Boden",
+                    "email": "cboden@gmail.com",
+                    "homepage": "https://cboden.dev/"
+                }
+            ],
+            "description": "Async, Promise-based cache interface for ReactPHP",
             "keywords": [
-                "cache"
+                "cache",
+                "caching",
+                "promise",
+                "reactphp"
             ],
             "support": {
                 "issues": "https://github.com/reactphp/cache/issues",
-                "source": "https://github.com/reactphp/cache/tree/v0.4.1"
+                "source": "https://github.com/reactphp/cache/tree/v1.1.1"
             },
-            "time": "2014-02-02T01:11:26+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/WyriHaximus",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/clue",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-02-02T06:47:52+00:00"
         },
         {
             "name": "react/child-process",
-            "version": "v0.5.0",
+            "version": "v0.6.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/child-process.git",
-                "reference": "3b8790deaa0e738dd4bdfb99e4da7c439240cd7d"
+                "reference": "70486012c0265264d2afa489ff32e7cdb76000d9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/child-process/zipball/3b8790deaa0e738dd4bdfb99e4da7c439240cd7d",
-                "reference": "3b8790deaa0e738dd4bdfb99e4da7c439240cd7d",
+                "url": "https://api.github.com/repos/reactphp/child-process/zipball/70486012c0265264d2afa489ff32e7cdb76000d9",
+                "reference": "70486012c0265264d2afa489ff32e7cdb76000d9",
                 "shasum": ""
             },
             "require": {
                 "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
                 "php": ">=5.3.0",
-                "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
-                "react/stream": "^1.0 || ^0.7.2"
+                "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
+                "react/stream": "^1.0 || ^0.7.6"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.0 || ^4.8.10",
-                "sebastian/environment": "~1.0"
+                "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35",
+                "react/socket": "^1.0",
+                "sebastian/environment": "^5.0 || ^3.0 || ^2.0 || ^1.0"
             },
             "type": "library",
             "autoload": {
@@ -408,41 +449,74 @@
             "license": [
                 "MIT"
             ],
-            "description": "Library for executing child processes.",
+            "authors": [
+                {
+                    "name": "Christian Lück",
+                    "email": "christian@clue.engineering",
+                    "homepage": "https://clue.engineering/"
+                },
+                {
+                    "name": "Cees-Jan Kiewiet",
+                    "email": "reactphp@ceesjankiewiet.nl",
+                    "homepage": "https://wyrihaximus.net/"
+                },
+                {
+                    "name": "Jan Sorgalla",
+                    "email": "jsorgalla@gmail.com",
+                    "homepage": "https://sorgalla.com/"
+                },
+                {
+                    "name": "Chris Boden",
+                    "email": "cboden@gmail.com",
+                    "homepage": "https://cboden.dev/"
+                }
+            ],
+            "description": "Event-driven library for executing child processes with ReactPHP.",
             "keywords": [
-                "process"
+                "event-driven",
+                "process",
+                "reactphp"
             ],
             "support": {
                 "issues": "https://github.com/reactphp/child-process/issues",
-                "source": "https://github.com/reactphp/child-process/tree/master"
+                "source": "https://github.com/reactphp/child-process/tree/v0.6.2"
             },
-            "time": "2017-08-15T15:31:31+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/WyriHaximus",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/clue",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-02-05T13:08:00+00:00"
         },
         {
             "name": "react/dns",
-            "version": "v0.4.13",
+            "version": "v1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/reactphp/dns.git",
-                "reference": "7d1e08c300fd7de600810883386ee5e2a64898f4"
+                "reference": "b22b0b20278e8535e633ab71a52472c5bf620aa1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/reactphp/dns/zipball/7d1e08c300fd7de600810883386ee5e2a64898f4",
-                "reference": "7d1e08c300fd7de600810883386ee5e2a64898f4",
+                "url": "https://api.github.com/repos/reactphp/dns/zipball/b22b0b20278e8535e633ab71a52472c5bf620aa1",
+                "reference": "b22b0b20278e8535e633ab71a52472c5bf620aa1",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.0",
-                "react/cache": "~0.4.0|~0.3.0",
-                "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
-                "react/promise": "^2.1 || ^1.2.1",
-                "react/promise-timer": "^1.2",
-                "react/stream": "^1.0 || ^0.7 || ^0.6 || ^0.5 || ^0.4.5"
+                "react/cache": "^1.0 || ^0.6 || ^0.5",
+                "react/event-loop": "^1.0 || ^0.5",
+                "react/promise": "^3.0 || ^2.7 || ^1.2.1",
+                "react/promise-timer": "^1.2"
             },
             "require-dev": {
                 "clue/block-react": "^1.2",
-                "phpunit/phpunit": "^6.4 || ^5.7 || ^4.8.35"
+                "phpunit/phpunit": "^9.3 || ^4.8.35"
             },
             "type": "library",
             "autoload": {
@@ -454,6 +528,28 @@
             "license": [
                 "MIT"
             ],
+            "authors": [
+                {
+                    "name": "Christian Lück",
+                    "email": "christian@clue.engineering",
+                    "homepage": "https://clue.engineering/"
+                },
+                {
+                    "name": "Cees-Jan Kiewiet",
+                    "email": "reactphp@ceesjankiewiet.nl",
+                    "homepage": "https://wyrihaximus.net/"
+                },
+                {
+                    "name": "Jan Sorgalla",
+                    "email": "jsorgalla@gmail.com",
+                    "homepage": "https://sorgalla.com/"
+                },
+                {
+                    "name": "Chris Boden",
+                    "email": "cboden@gmail.com",
+                    "homepage": "https://cboden.dev/"
+                }
+            ],
             "description": "Async DNS resolver for ReactPHP",
             "keywords": [
                 "async",
@@ -463,22 +559,32 @@
             ],
             "support": {
                 "issues": "https://github.com/reactphp/dns/issues",
-                "source": "https://github.com/reactphp/dns/tree/v0.4.13"
+                "source": "https://github.com/reactphp/dns/tree/v1.5.0"
             },
-            "time": "2018-02-27T12:51:22+00:00"
+            "funding": [
+                {
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             "require-dev": {
+                "ext-mbstring": "*",
                 "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "1.3.x-dev"
                 }
             },
             "autoload": {
@@ -2090,20 +2193,20 @@
                 "issues": "https://github.com/sebastianbergmann/exporter/issues",
                 "source": "https://github.com/sebastianbergmann/exporter/tree/master"
             },
-            "time": "2015-01-27T07:23:06+00:00"
+            "time": "2016-06-17T09:04:28+00:00"
         },
         {
             "name": "sebastian/global-state",
-            "version": "1.0.0",
+            "version": "1.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "c7428acdb62ece0a45e6306f1ae85e1c05b09c01"
+                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/c7428acdb62ece0a45e6306f1ae85e1c05b09c01",
-                "reference": "c7428acdb62ece0a45e6306f1ae85e1c05b09c01",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/bc37d50fea7d017d3d340f230811c9f1d7280af4",
+                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4",
                 "shasum": ""
             },
             "require": {
@@ -2143,22 +2246,22 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/global-state/issues",
-                "source": "https://github.com/sebastianbergmann/global-state/tree/master"
+                "source": "https://github.com/sebastianbergmann/global-state/tree/1.1.1"
             },
-            "time": "2014-10-06T09:23:50+00:00"
+            "time": "2015-10-12T03:26:01+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "1.0.0",
+            "version": "1.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "3989662bbb30a29d20d9faa04a846af79b276252"
+                "reference": "b19cc3298482a335a95f3016d2f8a6950f0fbcd7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/3989662bbb30a29d20d9faa04a846af79b276252",
-                "reference": "3989662bbb30a29d20d9faa04a846af79b276252",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/b19cc3298482a335a95f3016d2f8a6950f0fbcd7",
+                "reference": "b19cc3298482a335a95f3016d2f8a6950f0fbcd7",
                 "shasum": ""
             },
             "require": {
@@ -2200,22 +2303,22 @@
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
-                "source": "https://github.com/sebastianbergmann/recursion-context/tree/1.0.0"
+                "source": "https://github.com/sebastianbergmann/recursion-context/tree/master"
             },
-            "time": "2015-01-24T09:48:32+00:00"
+            "time": "2016-10-03T07:41:43+00:00"
         },
         {
             "name": "sebastian/version",
-            "version": "1.0.0",
+            "version": "1.0.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/version.git",
-                "reference": "16b021aed448b654ae05846e394e057e9a6f04cb"
+                "reference": "58b3a85e7999757d6ad81c787a1fbf5ff6c628c6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/16b021aed448b654ae05846e394e057e9a6f04cb",
-                "reference": "16b021aed448b654ae05846e394e057e9a6f04cb",
+                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/58b3a85e7999757d6ad81c787a1fbf5ff6c628c6",
+                "reference": "58b3a85e7999757d6ad81c787a1fbf5ff6c628c6",
                 "shasum": ""
             },
             "type": "library",
@@ -2239,22 +2342,22 @@
             "homepage": "https://github.com/sebastianbergmann/version",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/version/issues",
-                "source": "https://github.com/sebastianbergmann/version/tree/1.0.0"
+                "source": "https://github.com/sebastianbergmann/version/tree/1.0.6"
             },
-            "time": "2013-01-05T14:27:32+00:00"
+            "time": "2015-06-21T13:59:46+00:00"
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.3.2",
+            "version": "3.5.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e"
+                "reference": "9d583721a7157ee997f235f327de038e7ea6dac4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/6ad28354c04b364c3c71a34e4a18b629cc3b231e",
-                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/9d583721a7157ee997f235f327de038e7ea6dac4",
+                "reference": "9d583721a7157ee997f235f327de038e7ea6dac4",
                 "shasum": ""
             },
             "require": {
@@ -2287,7 +2390,7 @@
                 }
             ],
             "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
-            "homepage": "http://www.squizlabs.com/php-codesniffer",
+            "homepage": "https://github.com/squizlabs/PHP_CodeSniffer",
             "keywords": [
                 "phpcs",
                 "standards"
@@ -2297,70 +2400,152 @@
                 "source": "https://github.com/squizlabs/PHP_CodeSniffer",
                 "wiki": "https://github.com/squizlabs/PHP_CodeSniffer/wiki"
             },
-            "time": "2018-09-23T23:08:17+00:00"
+            "time": "2020-10-23T02:01:07+00:00"
         },
         {
-            "name": "symfony/yaml",
-            "version": "v2.1.0",
-            "target-dir": "Symfony/Component/Yaml",
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.19.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/yaml.git",
-                "reference": "f18e004fc975707bb4695df1dbbe9b0d8c8b7715"
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/f18e004fc975707bb4695df1dbbe9b0d8c8b7715",
-                "reference": "f18e004fc975707bb4695df1dbbe9b0d8c8b7715",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.1-dev"
+                    "dev-main": "1.19-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Symfony\\Component\\Yaml": ""
-                }
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
                 {
                     "name": "Symfony Community",
-                    "homepage": "http://symfony.com/contributors"
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.19.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
                 },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-23T09:01:57+00:00"
+        },
+        {
+            "name": "symfony/yaml",
+            "version": "v2.8.52",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/yaml.git",
+                "reference": "02c1859112aa779d9ab394ae4f3381911d84052b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/02c1859112aa779d9ab394ae4f3381911d84052b",
+                "reference": "02c1859112aa779d9ab394ae4f3381911d84052b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.9",
+                "symfony/polyfill-ctype": "~1.8"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.8-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Yaml\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
                 {
                     "name": "Fabien Potencier",
                     "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
                 }
             ],
             "description": "Symfony Yaml Component",
-            "homepage": "http://symfony.com",
+            "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/yaml/tree/v2.1.2"
+                "source": "https://github.com/symfony/yaml/tree/v2.8.52"
             },
-            "time": "2012-08-22T13:48:41+00:00"
+            "time": "2018-11-11T11:18:13+00:00"
         },
         {
             "name": "vectorface/dunit",
-            "version": "v2.0.0",
+            "version": "v2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Vectorface/dunit.git",
-                "reference": "69fe2b574073eb11f3e465f0215a6192101cbeb7"
+                "reference": "3f04c7a8bef5ff100666e92db96e93f80a6640bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Vectorface/dunit/zipball/69fe2b574073eb11f3e465f0215a6192101cbeb7",
-                "reference": "69fe2b574073eb11f3e465f0215a6192101cbeb7",
+                "url": "https://api.github.com/repos/Vectorface/dunit/zipball/3f04c7a8bef5ff100666e92db96e93f80a6640bf",
+                "reference": "3f04c7a8bef5ff100666e92db96e93f80a6640bf",
                 "shasum": ""
             },
             "require-dev": {
@@ -2404,14 +2589,14 @@
                 "issues": "https://github.com/Vectorface/dunit/issues",
                 "source": "https://github.com/Vectorface/dunit"
             },
-            "time": "2015-01-06T15:33:27+00:00"
+            "time": "2015-03-31T19:30:02+00:00"
         }
     ],
     "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": [],
     "prefer-stable": false,
-    "prefer-lowest": true,
+    "prefer-lowest": false,
     "platform": {
         "php": "^8.0 || ^7.0 || ^5.4"
     },
diff --git a/examples/ping-pong/pong.php b/examples/ping-pong/pong.php
index 9f8ea4d..a7b0765 100644
--- a/examples/ping-pong/pong.php
+++ b/examples/ping-pong/pong.php
@@ -4,6 +4,7 @@
 
 use React\EventLoop\Factory;
 use React\Promise\Deferred;
+use WyriHaximus\React\ChildProcess\Messenger\ChildProcess\ArgvEncoder;
 use WyriHaximus\React\ChildProcess\Messenger\Messages\Invoke;
 use WyriHaximus\React\ChildProcess\Messenger\Messages\Payload;
 use WyriHaximus\React\ChildProcess\Messenger\Messenger;
@@ -11,31 +12,37 @@
 
 $loop = Factory::create();
 
-$recipient = \WyriHaximus\React\ChildProcess\Messenger\Factory::child($loop);
-$recipient->on('message', function (Payload $payload, Messenger $messenger) {
-    $messenger->write(json_encode([
-        'type' => 'message',
-        'payload' => $payload,
-    ]));
-
-    $messenger->getLoop()->addTimer(1, function () use ($messenger) {
-        $messenger->getLoop()->stop();
+if (class_exists('\WyriHaximus\React\ChildProcess\Messenger\ChildProcess\ArgvEncoder')) {
+    $arguments = \array_pop($argv);
+    $recipient = \WyriHaximus\React\ChildProcess\Messenger\Factory::child($loop, ArgvEncoder::decode($arguments));
+} else {
+    $recipient = \WyriHaximus\React\ChildProcess\Messenger\Factory::child($loop);
+}
+\React\Promise\resolve($recipient)->then(function (Messenger $recipient) use ($loop) {
+    $recipient->on('message', function (Payload $payload, Messenger $messenger) {
+        $messenger->write(json_encode([
+            'type' => 'message',
+            'payload' => $payload,
+        ]));
+
+        $messenger->getLoop()->addTimer(1, function () use ($messenger) {
+            $messenger->getLoop()->stop();
+        });
     });
-});
-$recipient->registerRpc('ping', function (Payload $payload, Messenger $messenger) use ($loop) {
-    $stopAt = time() + mt_rand(1, 2);
+    $recipient->registerRpc('ping', function (Payload $payload, Messenger $messenger) use ($loop) {
+        $stopAt = time() + mt_rand(1, 2);
 
-    do {
-        // Don nothing
-    } while ($stopAt >= time());
+        do {
+            // Don nothing
+        } while ($stopAt >= time());
 
-    /*$messenger->getLoop()->addTimer(1, function () use ($messenger) {
-        $messenger->getLoop()->stop();
-    });*/
+        /*$messenger->getLoop()->addTimer(1, function () use ($messenger) {
+            $messenger->getLoop()->stop();
+        });*/
 
-    return \React\Promise\resolve([
-        'result' => $payload['i'] * $payload['i'] * $payload['i'] * $payload['i'],
-    ]);
+        return \React\Promise\resolve([
+            'result' => $payload['i'] * $payload['i'] * $payload['i'] * $payload['i'],
+        ]);
+    });
 });
-
 $loop->run();