diff --git a/composer.json b/composer.json
index 55df418..58940c6 100644
--- a/composer.json
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@@ -33,7 +33,7 @@
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index 9606c30..09fdc1c 100644
--- a/composer.lock
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@@ -1100,16 +1218,16 @@
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@@ -1117,11 +1235,11 @@
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@@ -1145,9 +1263,9 @@
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-                "source": "https://github.com/cweiske/jsonmapper/tree/master"
+                "source": "https://github.com/cweiske/jsonmapper/tree/v4.0.0"
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-            "time": "2019-08-15T19:41:25+00:00"
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@@ -1491,28 +1609,27 @@
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@@ -1542,9 +1659,9 @@
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-                "source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/5.1.0"
+                "source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/master"
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-            "time": "2020-02-22T12:28:44+00:00"
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@@ -1598,33 +1715,33 @@
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@@ -1659,9 +1776,9 @@
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@@ -2169,6 +2286,56 @@
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+            "authors": [
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+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
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+            ],
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+                "events",
+                "psr",
+                "psr-14"
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+                "source": "https://github.com/php-fig/event-dispatcher/tree/1.0.0"
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+            "time": "2019-01-08T18:20:26+00:00"
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@@ -3158,43 +3325,46 @@
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-                "symfony/dependency-injection": "<3.4",
-                "symfony/event-dispatcher": "<4.3|>=5",
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@@ -3227,8 +3397,14 @@
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             "description": "Eases the creation of beautiful and testable command line interfaces",
             "homepage": "https://symfony.com",
+            "keywords": [
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+                "command line",
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@@ -3244,7 +3420,7 @@
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@@ -3381,39 +3557,40 @@
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@@ -3445,7 +3622,7 @@
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+                "source": "https://github.com/symfony/event-dispatcher/tree/v5.3.7"
             },
             "funding": [
                 {
@@ -3461,33 +3638,33 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-08-04T20:31:23+00:00"
+            "time": "2021-08-04T21:20:46+00:00"
         },
         {
             "name": "symfony/event-dispatcher-contracts",
-            "version": "v1.1.9",
+            "version": "v2.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher-contracts.git",
-                "reference": "84e23fdcd2517bf37aecbd16967e83f0caee25a7"
+                "reference": "69fee1ad2332a7cbab3aca13591953da9cdb7a11"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher-contracts/zipball/84e23fdcd2517bf37aecbd16967e83f0caee25a7",
-                "reference": "84e23fdcd2517bf37aecbd16967e83f0caee25a7",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher-contracts/zipball/69fee1ad2332a7cbab3aca13591953da9cdb7a11",
+                "reference": "69fee1ad2332a7cbab3aca13591953da9cdb7a11",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.1.3"
+                "php": ">=7.2.5",
+                "psr/event-dispatcher": "^1"
             },
             "suggest": {
-                "psr/event-dispatcher": "",
                 "symfony/event-dispatcher-implementation": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1-dev"
+                    "dev-main": "2.4-dev"
                 },
                 "thanks": {
                     "name": "symfony/contracts",
@@ -3524,7 +3701,7 @@
                 "standards"
             ],
             "support": {
-                "source": "https://github.com/symfony/event-dispatcher-contracts/tree/v1.1.9"
+                "source": "https://github.com/symfony/event-dispatcher-contracts/tree/v2.4.0"
             },
             "funding": [
                 {
@@ -3540,7 +3717,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-07-06T13:19:58+00:00"
+            "time": "2021-03-23T23:28:01+00:00"
         },
         {
             "name": "symfony/finder",
@@ -3683,6 +3860,171 @@
             ],
             "time": "2021-02-19T12:13:01+00:00"
         },
+        {
+            "name": "symfony/polyfill-intl-grapheme",
+            "version": "v1.23.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-intl-grapheme.git",
+                "reference": "16880ba9c5ebe3642d1995ab866db29270b36535"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-intl-grapheme/zipball/16880ba9c5ebe3642d1995ab866db29270b36535",
+                "reference": "16880ba9c5ebe3642d1995ab866db29270b36535",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Grapheme\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's grapheme_* functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "grapheme",
+                "intl",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-intl-grapheme/tree/v1.23.1"
+            },
+            "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": "2021-05-27T12:26:48+00:00"
+        },
+        {
+            "name": "symfony/polyfill-intl-normalizer",
+            "version": "v1.23.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-intl-normalizer.git",
+                "reference": "8590a5f561694770bdcd3f9b5c69dde6945028e8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/8590a5f561694770bdcd3f9b5c69dde6945028e8",
+                "reference": "8590a5f561694770bdcd3f9b5c69dde6945028e8",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Normalizer\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's Normalizer class and related functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "intl",
+                "normalizer",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-intl-normalizer/tree/v1.23.0"
+            },
+            "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": "2021-02-19T12:13:01+00:00"
+        },
         {
             "name": "symfony/polyfill-mbstring",
             "version": "v1.23.1",
@@ -4004,6 +4346,89 @@
             ],
             "time": "2021-04-01T10:43:52+00:00"
         },
+        {
+            "name": "symfony/string",
+            "version": "v5.3.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/string.git",
+                "reference": "8d224396e28d30f81969f083a58763b8b9ceb0a5"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/string/zipball/8d224396e28d30f81969f083a58763b8b9ceb0a5",
+                "reference": "8d224396e28d30f81969f083a58763b8b9ceb0a5",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-intl-grapheme": "~1.0",
+                "symfony/polyfill-intl-normalizer": "~1.0",
+                "symfony/polyfill-mbstring": "~1.0",
+                "symfony/polyfill-php80": "~1.15"
+            },
+            "require-dev": {
+                "symfony/error-handler": "^4.4|^5.0",
+                "symfony/http-client": "^4.4|^5.0",
+                "symfony/translation-contracts": "^1.1|^2",
+                "symfony/var-exporter": "^4.4|^5.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\String\\": ""
+                },
+                "files": [
+                    "Resources/functions.php"
+                ],
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "grapheme",
+                "i18n",
+                "string",
+                "unicode",
+                "utf-8",
+                "utf8"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/string/tree/v5.3.7"
+            },
+            "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": "2021-08-26T08:00:08+00:00"
+        },
         {
             "name": "symfony/yaml",
             "version": "v5.3.6",
@@ -4131,32 +4556,40 @@
         },
         {
             "name": "vimeo/psalm",
-            "version": "3.6.2",
+            "version": "4.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "05ace258176795e87ef07b4262b5ceba3fd27de3"
+                "reference": "916b098b008f6de4543892b1e0651c1c3b92cbfa"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/05ace258176795e87ef07b4262b5ceba3fd27de3",
-                "reference": "05ace258176795e87ef07b4262b5ceba3fd27de3",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/916b098b008f6de4543892b1e0651c1c3b92cbfa",
+                "reference": "916b098b008f6de4543892b1e0651c1c3b92cbfa",
                 "shasum": ""
             },
             "require": {
-                "amphp/amp": "^2.1",
+                "amphp/amp": "^2.4.2",
                 "amphp/byte-stream": "^1.5",
-                "composer/xdebug-handler": "^1.1",
+                "composer/package-versions-deprecated": "^1.8.0",
+                "composer/semver": "^1.4 || ^2.0 || ^3.0",
+                "composer/xdebug-handler": "^1.1 || ^2.0",
+                "dnoegel/php-xdg-base-dir": "^0.1.1",
+                "ext-ctype": "*",
+                "ext-dom": "*",
+                "ext-json": "*",
+                "ext-libxml": "*",
+                "ext-mbstring": "*",
+                "ext-simplexml": "*",
+                "ext-tokenizer": "*",
                 "felixfbecker/advanced-json-rpc": "^3.0.3",
-                "felixfbecker/language-server-protocol": "^1.4",
-                "netresearch/jsonmapper": "^1.0",
-                "nikic/php-parser": "^4.2",
-                "ocramius/package-versions": "^1.2",
+                "felixfbecker/language-server-protocol": "^1.5",
+                "netresearch/jsonmapper": "^1.0 || ^2.0 || ^3.0 || ^4.0",
+                "nikic/php-parser": "^4.12",
                 "openlss/lib-array2xml": "^1.0",
-                "php": "^7.1.3",
-                "sebastian/diff": "^3.0",
-                "symfony/console": "^3.3||^4.0",
-                "webmozart/glob": "^4.1",
+                "php": "^7.1|^8",
+                "sebastian/diff": "^3.0 || ^4.0",
+                "symfony/console": "^3.4.17 || ^4.1.6 || ^5.0",
                 "webmozart/path-util": "^2.3"
             },
             "provide": {
@@ -4164,40 +4597,45 @@
             },
             "require-dev": {
                 "bamarni/composer-bin-plugin": "^1.2",
+                "brianium/paratest": "^4.0||^6.0",
                 "ext-curl": "*",
-                "friendsofphp/php-cs-fixer": "^2.15",
-                "phpmyadmin/sql-parser": "^5.0",
-                "phpunit/phpunit": "^7.5 || ^8.0",
-                "psalm/plugin-phpunit": "^0.6",
-                "slevomat/coding-standard": "^5.0",
-                "squizlabs/php_codesniffer": "3.4.0",
-                "symfony/process": "^4.3"
+                "php-parallel-lint/php-parallel-lint": "^1.2",
+                "phpdocumentor/reflection-docblock": "^5",
+                "phpmyadmin/sql-parser": "5.1.0||dev-master",
+                "phpspec/prophecy": ">=1.9.0",
+                "phpunit/phpunit": "^9.0",
+                "psalm/plugin-phpunit": "^0.16",
+                "slevomat/coding-standard": "^7.0",
+                "squizlabs/php_codesniffer": "^3.5",
+                "symfony/process": "^4.3 || ^5.0",
+                "weirdan/prophecy-shim": "^1.0 || ^2.0"
             },
             "suggest": {
                 "ext-igbinary": "^2.0.5"
             },
             "bin": [
                 "psalm",
-                "psalter",
                 "psalm-language-server",
                 "psalm-plugin",
-                "psalm-refactor"
+                "psalm-refactor",
+                "psalter"
             ],
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.x-dev",
+                    "dev-master": "4.x-dev",
+                    "dev-3.x": "3.x-dev",
                     "dev-2.x": "2.x-dev",
                     "dev-1.x": "1.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "Psalm\\Plugin\\": "src/Psalm/Plugin",
-                    "Psalm\\": "src/Psalm"
+                    "Psalm\\": "src/Psalm/"
                 },
                 "files": [
-                    "src/functions.php"
+                    "src/functions.php",
+                    "src/spl_object_id.php"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -4217,9 +4655,9 @@
             ],
             "support": {
                 "issues": "https://github.com/vimeo/psalm/issues",
-                "source": "https://github.com/vimeo/psalm/tree/master"
+                "source": "https://github.com/vimeo/psalm/tree/4.10.0"
             },
-            "time": "2019-10-20T20:19:01+00:00"
+            "time": "2021-09-04T21:00:09+00:00"
         },
         {
             "name": "vlucas/phpdotenv",
@@ -4297,29 +4735,35 @@
         },
         {
             "name": "webmozart/assert",
-            "version": "1.7.0",
+            "version": "1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozarts/assert.git",
-                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598"
+                "reference": "6964c76c7804814a842473e0c8fd15bab0f18e25"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/assert/zipball/aed98a490f9a8f78468232db345ab9cf606cf598",
-                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598",
+                "url": "https://api.github.com/repos/webmozarts/assert/zipball/6964c76c7804814a842473e0c8fd15bab0f18e25",
+                "reference": "6964c76c7804814a842473e0c8fd15bab0f18e25",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0",
+                "php": "^7.2 || ^8.0",
                 "symfony/polyfill-ctype": "^1.8"
             },
             "conflict": {
-                "vimeo/psalm": "<3.6.0"
+                "phpstan/phpstan": "<0.12.20",
+                "vimeo/psalm": "<4.6.1 || 4.6.2"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
+                "phpunit/phpunit": "^8.5.13"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.10-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "Webmozart\\Assert\\": "src/"
@@ -4343,60 +4787,9 @@
             ],
             "support": {
                 "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.7.0"
-            },
-            "time": "2020-02-14T12:15:55+00:00"
-        },
-        {
-            "name": "webmozart/glob",
-            "version": "4.1.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/webmozarts/glob.git",
-                "reference": "3cbf63d4973cf9d780b93d2da8eec7e4a9e63bbe"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/glob/zipball/3cbf63d4973cf9d780b93d2da8eec7e4a9e63bbe",
-                "reference": "3cbf63d4973cf9d780b93d2da8eec7e4a9e63bbe",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.3.3|^7.0",
-                "webmozart/path-util": "^2.2"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1",
-                "symfony/filesystem": "^2.5"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "4.1-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Glob\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "A PHP implementation of Ant's glob.",
-            "support": {
-                "issues": "https://github.com/webmozarts/glob/issues",
-                "source": "https://github.com/webmozarts/glob/tree/4.1.0"
+                "source": "https://github.com/webmozarts/assert/tree/1.10.0"
             },
-            "time": "2015-12-29T11:14:33+00:00"
+            "time": "2021-03-09T10:59:23+00:00"
         },
         {
             "name": "webmozart/path-util",
diff --git a/psalm.xml.dist b/psalm.xml.dist
index d735566..fd8171f 100644
--- a/psalm.xml.dist
+++ b/psalm.xml.dist
@@ -1,16 +1,15 @@
 <?xml version="1.0"?>
 <psalm
-    totallyTyped="false"
-    resolveFromConfigFile="true"
+    errorLevel="7"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
 >
     <projectFiles>
-        <directory name="src/" />
+        <directory name="src"/>
         <ignoreFiles>
-            <directory name="vendor" />
-            <file name="vendor/symfony/polyfill-mbstring/bootstrap80.php" />
+            <directory name="vendor"/>
+            <file name="vendor/symfony/polyfill-mbstring/bootstrap80.php"/>
         </ignoreFiles>
     </projectFiles>
 
@@ -31,7 +30,6 @@
         <MissingReturnType errorLevel="info" />
         <MissingPropertyType errorLevel="info" />
         <InvalidDocblock errorLevel="info" />
-        <MisplacedRequiredParam errorLevel="info" />
 
         <PropertyNotSetInConstructor errorLevel="info" />
         <MissingClosureParamType errorLevel="info" />
@@ -47,7 +45,6 @@
 
         <MoreSpecificReturnType errorLevel="info" />
         <LessSpecificReturnStatement errorLevel="info" />
-        <TypeCoercion errorLevel="info" />
 
         <PossiblyInvalidPropertyAssignmentValue errorLevel="info" />
         <PossiblyNullArgument errorLevel="info" />