diff --git a/composer.lock b/composer.lock
index 8447c56..bcbae2a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,7 +1,7 @@
 {
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         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "cf24ef371165ea24b07a1ff96249a077",
@@ -51,21 +51,21 @@
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+            "version": "1.1.0",
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                 "url": "https://github.com/php-api-clients/cs-fixer-config.git",
-                "reference": "fadf5d8c64508f5af241201217a57b6646768cda"
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-                "reference": "fadf5d8c64508f5af241201217a57b6646768cda",
+                "url": "https://api.github.com/repos/php-api-clients/cs-fixer-config/zipball/9d7a6ecd40f32220f8f10d5383596022a8cc9a16",
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             "require": {
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-                "php": "^7.0"
+                "php": "^7.2"
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@@ -87,30 +87,30 @@
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             "description": "friendsofphp/php-cs-fixer config",
-            "time": "2018-09-01T22:35:26+00:00"
+            "time": "2018-11-21T22:05:53+00:00"
         },
         {
             "name": "api-clients/test-utilities",
-            "version": "5.1.0",
+            "version": "5.2.0",
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                 "url": "https://github.com/php-api-clients/test-utilities.git",
-                "reference": "109b0f894ea630e0bf53901945e2760285356332"
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-                "reference": "109b0f894ea630e0bf53901945e2760285356332",
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-                "jakub-onderka/php-console-highlighter": "^0.3.2",
-                "jakub-onderka/php-parallel-lint": "^0.9.2",
-                "localheinz/composer-normalize": "^0.1.0",
+                "infection/infection": "^0.11.0",
+                "jakub-onderka/php-console-highlighter": "^0.4",
+                "jakub-onderka/php-parallel-lint": "^1.0.0",
+                "localheinz/composer-normalize": "^1.0.0",
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@@ -131,7 +131,7 @@
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-            "time": "2018-09-01T22:48:37+00:00"
+            "time": "2018-11-22T16:23:05+00:00"
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         {
             "name": "clue/block-react",
@@ -242,6 +242,86 @@
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             "time": "2018-10-18T06:09:13+00:00"
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+                "phpunit/phpunit-mock-objects": "^2.3 || ^3.0"
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+                "ext-openssl": "Enabling the openssl extension allows you to access https URLs for repositories and packages",
+                "ext-zip": "Enabling the zip extension allows you to unzip archives",
+                "ext-zlib": "Allow gzip compression of HTTP requests"
+            },
+            "bin": [
+                "bin/composer"
+            ],
+            "type": "library",
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+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\": "src/Composer"
+                }
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
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+                    "email": "naderman@naderman.de",
+                    "homepage": "http://www.naderman.de"
+                },
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+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "Composer helps you declare, manage and install dependencies of PHP projects, ensuring you have the right stack everywhere.",
+            "homepage": "https://getcomposer.org/",
+            "keywords": [
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+                "dependency",
+                "package"
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+        },
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@@ -304,6 +384,67 @@
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+                "phpunit/phpunit-mock-objects": "2.3.0 || ^3.0"
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+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
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+                    "email": "naderman@naderman.de",
+                    "homepage": "http://www.naderman.de"
+                },
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                },
+                {
+                    "name": "Rob Bast",
+                    "email": "rob.bast@gmail.com",
+                    "homepage": "http://robbast.nl"
+                }
+            ],
+            "description": "SPDX licenses list and validation library.",
+            "keywords": [
+                "license",
+                "spdx",
+                "validator"
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@@ -617,34 +758,39 @@
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             "require": {
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                 "ext-dom": "*",
-                "nikic/php-parser": "^4.0",
+                "ext-json": "*",
+                "ext-libxml": "*",
+                "justinrainbow/json-schema": "^5.2",
+                "nikic/php-parser": "^4.1",
                 "ocramius/package-versions": "^1.2",
                 "padraic/phar-updater": "^1.0.4",
-                "php": "^7.0",
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                 "pimple/pimple": "^3.2",
                 "sebastian/diff": "^1.4 || ^2.0 || ^3.0",
                 "symfony/console": "^3.2 || ^4.0",
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                 "symfony/finder": "^3.2 || ^4.0",
                 "symfony/process": "^3.2 || ^4.0",
-                "symfony/yaml": "^3.2 || ^4.0"
+                "symfony/yaml": "^3.2 || ^4.0",
+                "webmozart/assert": "^1.3"
             },
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@@ -698,7 +844,7 @@
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                 "unit testing"
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-            "time": "2018-08-09T04:45:18+00:00"
+            "time": "2018-11-18T02:40:38+00:00"
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@@ -744,33 +890,34 @@
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-            "version": "v0.3.2",
+            "version": "v0.4",
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-                "reference": "7daa75df45242c8d5b75a22c00a201e7954e4fb5"
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-                "reference": "7daa75df45242c8d5b75a22c00a201e7954e4fb5",
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             },
             "require": {
-                "jakub-onderka/php-console-color": "~0.1",
-                "php": ">=5.3.0"
+                "ext-tokenizer": "*",
+                "jakub-onderka/php-console-color": "~0.2",
+                "php": ">=5.4.0"
             },
             "require-dev": {
                 "jakub-onderka/php-code-style": "~1.0",
-                "jakub-onderka/php-parallel-lint": "~0.5",
+                "jakub-onderka/php-parallel-lint": "~1.0",
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                 "squizlabs/php_codesniffer": "~1.5"
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             "type": "library",
             "autoload": {
-                "psr-0": {
-                    "JakubOnderka\\PhpConsoleHighlighter": "src/"
+                "psr-4": {
+                    "JakubOnderka\\PhpConsoleHighlighter\\": "src/"
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             "notification-url": "https://packagist.org/downloads/",
@@ -784,20 +931,21 @@
                     "homepage": "http://www.acci.cz/"
                 }
             ],
-            "time": "2015-04-20T18:58:01+00:00"
+            "description": "Highlight PHP code in terminal",
+            "time": "2018-09-29T18:48:56+00:00"
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-            "version": "v0.9.2",
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@@ -805,7 +953,8 @@
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                 "jakub-onderka/php-console-highlighter": "~0.3",
-                "nette/tester": "~1.3"
+                "nette/tester": "~1.3",
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             "suggest": {
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@@ -826,12 +975,12 @@
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                 {
                     "name": "Jakub Onderka",
-                    "email": "jakub.onderka@gmail.com"
+                    "email": "ahoj@jakubonderka.cz"
                 }
             ],
             "description": "This tool check syntax of PHP files about 20x faster than serial check.",
             "homepage": "https://github.com/JakubOnderka/PHP-Parallel-Lint",
-            "time": "2015-12-15T10:42:16+00:00"
+            "time": "2018-02-24T15:31:20+00:00"
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             "name": "justinrainbow/json-schema",
@@ -899,32 +1048,91 @@
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         },
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+            "require": {
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+                "php": "^7.1"
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+                "localheinz/test-util": "~0.7.0",
+                "phpstan/phpstan": "~0.10.5",
+                "phpstan/phpstan-strict-rules": "~0.10.1",
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+            "autoload": {
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+                    "Localheinz\\Composer\\Json\\Normalizer\\": "src/"
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+            },
+            "notification-url": "https://packagist.org/downloads/",
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+                "MIT"
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+                    "email": "am@localheinz.com"
+                }
+            ],
+            "description": "Provides normalizers for normalizing composer.json.",
+            "homepage": "https://github.com/localheinz/composer-json-normalizer",
+            "keywords": [
+                "composer",
+                "json",
+                "normalizer"
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+            "version": "1.0.0",
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-                "php": "^7.0"
+                "localheinz/composer-json-normalizer": "^1.0.1",
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+                "php": "^7.1",
+                "sebastian/diff": "^2.0.1 || ^3.0.0",
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-                "infection/infection": "~0.7.0",
-                "localheinz/php-cs-fixer-config": "~1.11.0",
+                "infection/infection": "~0.11.1",
+                "localheinz/php-cs-fixer-config": "~1.15.0",
+                "localheinz/phpstan-rules": "~0.1.0",
                 "localheinz/test-util": "0.6.1",
                 "mikey179/vfsstream": "^1.6.5",
-                "phpunit/phpunit": "^6.5.5"
+                "phpstan/phpstan": "~0.10.5",
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+                "phpunit/phpunit": "^6.5.13 || ^7.4.3"
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             "type": "composer-plugin",
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@@ -946,40 +1154,42 @@
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             "description": "Provides a composer plugin for normalizing composer.json.",
+            "homepage": "https://github.com/localheinz/composer-normalize",
             "keywords": [
                 "composer",
                 "normalize",
                 "normalizer",
                 "plugin"
             ],
-            "time": "2018-01-14T12:15:12+00:00"
+            "time": "2018-11-17T15:51:26+00:00"
         },
         {
             "name": "localheinz/json-normalizer",
-            "version": "0.1.0",
+            "version": "0.9.0",
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-                "reference": "443a53cef0a8adc96f857a79fb7c818fc7be388d"
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             "require": {
+                "ext-json": "*",
                 "justinrainbow/json-schema": "^4.0.0 || ^5.0.0",
-                "localheinz/json-printer": "^1.0.0",
-                "php": "^7.0"
+                "localheinz/json-printer": "^2.0.1",
+                "php": "^7.1"
             },
             "require-dev": {
-                "infection/infection": "~0.7.0",
-                "localheinz/php-cs-fixer-config": "~1.11.0",
-                "localheinz/test-util": "0.6.1",
+                "infection/infection": "~0.10.5",
+                "localheinz/php-cs-fixer-config": "~1.15.0",
+                "localheinz/test-util": "~0.7.0",
                 "phpbench/phpbench": "~0.14.0",
-                "phpspec/prophecy": "^1.7.1",
-                "phpunit/phpunit": "^6.5.5"
+                "phpstan/phpstan": "~0.10.3",
+                "phpunit/phpunit": "^7.4.0"
             },
             "type": "library",
             "autoload": {
@@ -998,35 +1208,36 @@
                 }
             ],
             "description": "Provides normalizers for normalizing JSON documents.",
+            "homepage": "https://github.com/localheinz/json-normalizer",
             "keywords": [
                 "json",
                 "normalizer"
             ],
-            "time": "2018-01-13T21:59:29+00:00"
+            "time": "2018-10-07T17:36:39+00:00"
         },
         {
             "name": "localheinz/json-printer",
-            "version": "1.1.0",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/localheinz/json-printer.git",
-                "reference": "49459a160c551b5504d1edcbb10692039071d08a"
+                "reference": "86f942599c8f9f922de4e21c2b9b6564c895cb0c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/localheinz/json-printer/zipball/49459a160c551b5504d1edcbb10692039071d08a",
-                "reference": "49459a160c551b5504d1edcbb10692039071d08a",
+                "url": "https://api.github.com/repos/localheinz/json-printer/zipball/86f942599c8f9f922de4e21c2b9b6564c895cb0c",
+                "reference": "86f942599c8f9f922de4e21c2b9b6564c895cb0c",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0"
             },
             "require-dev": {
-                "infection/infection": "~0.7.0",
-                "localheinz/php-cs-fixer-config": "~1.9.0",
+                "infection/infection": "~0.8.1",
+                "localheinz/php-cs-fixer-config": "~1.14.0",
                 "localheinz/test-util": "0.6.1",
                 "phpbench/phpbench": "~0.14.0",
-                "phpunit/phpunit": "^6.5.5"
+                "phpunit/phpunit": "^6.5.7"
             },
             "type": "library",
             "autoload": {
@@ -1051,7 +1262,7 @@
                 "json",
                 "printer"
             ],
-            "time": "2018-01-27T21:05:05+00:00"
+            "time": "2018-08-11T23:54:50+00:00"
         },
         {
             "name": "myclabs/deep-copy",
@@ -1989,16 +2200,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "7.4.3",
+            "version": "7.4.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "c151651fb6ed264038d486ea262e243af72e5e64"
+                "reference": "b1be2c8530c4c29c3519a052c9fb6cee55053bbd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/c151651fb6ed264038d486ea262e243af72e5e64",
-                "reference": "c151651fb6ed264038d486ea262e243af72e5e64",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/b1be2c8530c4c29c3519a052c9fb6cee55053bbd",
+                "reference": "b1be2c8530c4c29c3519a052c9fb6cee55053bbd",
                 "shasum": ""
             },
             "require": {
@@ -2069,7 +2280,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2018-10-23T05:57:41+00:00"
+            "time": "2018-11-14T16:52:02+00:00"
         },
         {
             "name": "pimple/pimple",
@@ -2172,16 +2383,16 @@
         },
         {
             "name": "psr/log",
-            "version": "1.0.2",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/log.git",
-                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d"
+                "reference": "6c001f1daafa3a3ac1d8ff69ee4db8e799a654dd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/log/zipball/4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
-                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/6c001f1daafa3a3ac1d8ff69ee4db8e799a654dd",
+                "reference": "6c001f1daafa3a3ac1d8ff69ee4db8e799a654dd",
                 "shasum": ""
             },
             "require": {
@@ -2215,7 +2426,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2016-10-10T12:19:37+00:00"
+            "time": "2018-11-20T15:27:04+00:00"
         },
         {
             "name": "react/promise",
@@ -2879,6 +3090,99 @@
             "homepage": "https://github.com/sebastianbergmann/version",
             "time": "2016-10-03T07:35:21+00:00"
         },
+        {
+            "name": "seld/jsonlint",
+            "version": "1.7.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Seldaek/jsonlint.git",
+                "reference": "d15f59a67ff805a44c50ea0516d2341740f81a38"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/d15f59a67ff805a44c50ea0516d2341740f81a38",
+                "reference": "d15f59a67ff805a44c50ea0516d2341740f81a38",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3 || ^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
+            },
+            "bin": [
+                "bin/jsonlint"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Seld\\JsonLint\\": "src/Seld/JsonLint/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "JSON Linter",
+            "keywords": [
+                "json",
+                "linter",
+                "parser",
+                "validator"
+            ],
+            "time": "2018-01-24T12:46:19+00:00"
+        },
+        {
+            "name": "seld/phar-utils",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Seldaek/phar-utils.git",
+                "reference": "7009b5139491975ef6486545a39f3e6dad5ac30a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Seldaek/phar-utils/zipball/7009b5139491975ef6486545a39f3e6dad5ac30a",
+                "reference": "7009b5139491975ef6486545a39f3e6dad5ac30a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Seld\\PharUtils\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be"
+                }
+            ],
+            "description": "PHAR file format utilities, for when PHP phars you up",
+            "keywords": [
+                "phra"
+            ],
+            "time": "2015-10-13T18:44:15+00:00"
+        },
         {
             "name": "symfony/console",
             "version": "v4.1.7",
diff --git a/tests/DiTest.php b/tests/DiTest.php
index df70ef8..23b6a72 100644
--- a/tests/DiTest.php
+++ b/tests/DiTest.php
@@ -3,11 +3,14 @@
 use ApiClients\Tools\TestUtilities\TestCase;
 use React\EventLoop\LoopInterface;
 
+/**
+ * @internal
+ */
 final class DiTest extends TestCase
 {
-    public function testLoop()
+    public function testLoop(): void
     {
-        $root = dirname(__DIR__);
+        $root = \dirname(__DIR__);
         $path = $root . DIRECTORY_SEPARATOR . 'etc' . DIRECTORY_SEPARATOR . 'di' . DIRECTORY_SEPARATOR . 'event-loop.php';
         $loop = (require $path)[LoopInterface::class]();