diff --git a/composer.json b/composer.json
index 5351e42..9c25f5d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
     "require-dev": {
         "jakub-onderka/php-parallel-lint": "^1.0",
-        "phpunit/phpunit": "^7"
+        "phpunit/phpunit": "^8"
     }
 }
diff --git a/composer.lock b/composer.lock
index 1f41248..845e61f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,21 +4,21 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2aa8a80c02fc1ad0cf27e4ddfc145f15",
+    "content-hash": "d934037e76bef54a40b8e842c1795148",
     "packages": [],
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.2.0",
+            "version": "1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "a2c590166b2133a4633738648b6b064edae0814a"
+                "reference": "ae466f726242e637cebdd526a7d991b9433bacf1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/a2c590166b2133a4633738648b6b064edae0814a",
-                "reference": "a2c590166b2133a4633738648b6b064edae0814a",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/ae466f726242e637cebdd526a7d991b9433bacf1",
+                "reference": "ae466f726242e637cebdd526a7d991b9433bacf1",
                 "shasum": ""
             },
             "require": {
@@ -61,7 +61,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2019-03-17T17:37:11+00:00"
+            "time": "2019-10-21T16:45:58+00:00"
         },
         {
             "name": "jakub-onderka/php-parallel-lint",
@@ -113,16 +113,16 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.9.1",
+            "version": "1.9.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "e6828efaba2c9b79f4499dae1d66ef8bfa7b2b72"
+                "reference": "579bb7356d91f9456ccd505f24ca8b667966a0a7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/e6828efaba2c9b79f4499dae1d66ef8bfa7b2b72",
-                "reference": "e6828efaba2c9b79f4499dae1d66ef8bfa7b2b72",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/579bb7356d91f9456ccd505f24ca8b667966a0a7",
+                "reference": "579bb7356d91f9456ccd505f24ca8b667966a0a7",
                 "shasum": ""
             },
             "require": {
@@ -157,7 +157,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2019-04-07T13:18:21+00:00"
+            "time": "2019-12-15T19:12:40+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -263,35 +263,33 @@
         },
         {
             "name": "phpdocumentor/reflection-common",
-            "version": "1.0.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6"
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/63a995caa1ca9e5590304cd845c15ad6d482a62a",
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5"
+                "php": ">=7.1"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6"
+                "phpunit/phpunit": "~6"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -313,30 +311,30 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2017-09-11T18:02:19+00:00"
+            "time": "2018-08-07T13:53:10+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "4.3.1",
+            "version": "4.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "bdd9f737ebc2a01c06ea7ff4308ec6697db9b53c"
+                "reference": "2ecaa9fef01634c83bfa8dc1fe35fb5cef223a62"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/bdd9f737ebc2a01c06ea7ff4308ec6697db9b53c",
-                "reference": "bdd9f737ebc2a01c06ea7ff4308ec6697db9b53c",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/2ecaa9fef01634c83bfa8dc1fe35fb5cef223a62",
+                "reference": "2ecaa9fef01634c83bfa8dc1fe35fb5cef223a62",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0",
-                "phpdocumentor/reflection-common": "^1.0.0",
-                "phpdocumentor/type-resolver": "^0.4.0",
+                "phpdocumentor/reflection-common": "^1.0.0 || ^2.0.0",
+                "phpdocumentor/type-resolver": "~0.4 || ^1.0.0",
                 "webmozart/assert": "^1.0"
             },
             "require-dev": {
-                "doctrine/instantiator": "~1.0.5",
+                "doctrine/instantiator": "^1.0.5",
                 "mockery/mockery": "^1.0",
                 "phpunit/phpunit": "^6.4"
             },
@@ -364,41 +362,40 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2019-04-30T17:48:53+00:00"
+            "time": "2019-12-20T13:40:23+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
-            "version": "0.4.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7"
+                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7",
+                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
+                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0",
-                "phpdocumentor/reflection-common": "^1.0"
+                "php": "^7.1",
+                "phpdocumentor/reflection-common": "^2.0"
             },
             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^5.2||^4.8.24"
+                "ext-tokenizer": "^7.1",
+                "mockery/mockery": "~1",
+                "phpunit/phpunit": "^7.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.x-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -411,42 +408,43 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2017-07-14T14:27:02+00:00"
+            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
+            "time": "2019-08-22T18:11:29+00:00"
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.8.0",
+            "version": "1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06"
+                "reference": "d638ebbb58daba25a6a0dc7969e1358a0e3c6682"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
-                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/d638ebbb58daba25a6a0dc7969e1358a0e3c6682",
+                "reference": "d638ebbb58daba25a6a0dc7969e1358a0e3c6682",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
-                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
-                "sebastian/comparator": "^1.1|^2.0|^3.0",
+                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0|^5.0",
+                "sebastian/comparator": "^1.2.3|^2.0|^3.0",
                 "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
             "require-dev": {
-                "phpspec/phpspec": "^2.5|^3.2",
+                "phpspec/phpspec": "^2.5 || ^3.2",
                 "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.8.x-dev"
+                    "dev-master": "1.10.x-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Prophecy\\": "src/"
+                "psr-4": {
+                    "Prophecy\\": "src/Prophecy"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -474,44 +472,44 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-08-05T17:53:17+00:00"
+            "time": "2019-12-17T16:54:23+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "6.1.4",
+            "version": "7.0.10",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "807e6013b00af69b6c5d9ceb4282d0393dbb9d8d"
+                "reference": "f1884187926fbb755a9aaf0b3836ad3165b478bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/807e6013b00af69b6c5d9ceb4282d0393dbb9d8d",
-                "reference": "807e6013b00af69b6c5d9ceb4282d0393dbb9d8d",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/f1884187926fbb755a9aaf0b3836ad3165b478bf",
+                "reference": "f1884187926fbb755a9aaf0b3836ad3165b478bf",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-xmlwriter": "*",
-                "php": "^7.1",
-                "phpunit/php-file-iterator": "^2.0",
+                "php": "^7.2",
+                "phpunit/php-file-iterator": "^2.0.2",
                 "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-token-stream": "^3.0",
+                "phpunit/php-token-stream": "^3.1.1",
                 "sebastian/code-unit-reverse-lookup": "^1.0.1",
-                "sebastian/environment": "^3.1 || ^4.0",
+                "sebastian/environment": "^4.2.2",
                 "sebastian/version": "^2.0.1",
-                "theseer/tokenizer": "^1.1"
+                "theseer/tokenizer": "^1.1.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^7.0"
+                "phpunit/phpunit": "^8.2.2"
             },
             "suggest": {
-                "ext-xdebug": "^2.6.0"
+                "ext-xdebug": "^2.7.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.1-dev"
+                    "dev-master": "7.0-dev"
                 }
             },
             "autoload": {
@@ -537,7 +535,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2018-10-31T16:06:48+00:00"
+            "time": "2019-11-20T13:55:58+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -632,16 +630,16 @@
         },
         {
             "name": "phpunit/php-timer",
-            "version": "2.1.1",
+            "version": "2.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-timer.git",
-                "reference": "8b389aebe1b8b0578430bda0c7c95a829608e059"
+                "reference": "1038454804406b0b5f5f520358e78c1c2f71501e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/8b389aebe1b8b0578430bda0c7c95a829608e059",
-                "reference": "8b389aebe1b8b0578430bda0c7c95a829608e059",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/1038454804406b0b5f5f520358e78c1c2f71501e",
+                "reference": "1038454804406b0b5f5f520358e78c1c2f71501e",
                 "shasum": ""
             },
             "require": {
@@ -677,20 +675,20 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2019-02-20T10:12:59+00:00"
+            "time": "2019-06-07T04:22:29+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "3.0.1",
+            "version": "3.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "c99e3be9d3e85f60646f152f9002d46ed7770d18"
+                "reference": "995192df77f63a59e47f025390d2d1fdf8f425ff"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/c99e3be9d3e85f60646f152f9002d46ed7770d18",
-                "reference": "c99e3be9d3e85f60646f152f9002d46ed7770d18",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/995192df77f63a59e47f025390d2d1fdf8f425ff",
+                "reference": "995192df77f63a59e47f025390d2d1fdf8f425ff",
                 "shasum": ""
             },
             "require": {
@@ -703,7 +701,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -726,57 +724,56 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2018-10-30T05:52:18+00:00"
+            "time": "2019-09-17T06:23:10+00:00"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "7.5.9",
+            "version": "8.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "134669cf0eeac3f79bc7f0c793efbc158bffc160"
+                "reference": "3ee1c1fd6fc264480c25b6fb8285edefe1702dab"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/134669cf0eeac3f79bc7f0c793efbc158bffc160",
-                "reference": "134669cf0eeac3f79bc7f0c793efbc158bffc160",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3ee1c1fd6fc264480c25b6fb8285edefe1702dab",
+                "reference": "3ee1c1fd6fc264480c25b6fb8285edefe1702dab",
                 "shasum": ""
             },
             "require": {
-                "doctrine/instantiator": "^1.1",
+                "doctrine/instantiator": "^1.2.0",
                 "ext-dom": "*",
                 "ext-json": "*",
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "ext-xml": "*",
-                "myclabs/deep-copy": "^1.7",
-                "phar-io/manifest": "^1.0.2",
-                "phar-io/version": "^2.0",
-                "php": "^7.1",
-                "phpspec/prophecy": "^1.7",
-                "phpunit/php-code-coverage": "^6.0.7",
-                "phpunit/php-file-iterator": "^2.0.1",
+                "ext-xmlwriter": "*",
+                "myclabs/deep-copy": "^1.9.1",
+                "phar-io/manifest": "^1.0.3",
+                "phar-io/version": "^2.0.1",
+                "php": "^7.2",
+                "phpspec/prophecy": "^1.8.1",
+                "phpunit/php-code-coverage": "^7.0.7",
+                "phpunit/php-file-iterator": "^2.0.2",
                 "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-timer": "^2.1",
-                "sebastian/comparator": "^3.0",
-                "sebastian/diff": "^3.0",
-                "sebastian/environment": "^4.0",
-                "sebastian/exporter": "^3.1",
-                "sebastian/global-state": "^2.0",
+                "phpunit/php-timer": "^2.1.2",
+                "sebastian/comparator": "^3.0.2",
+                "sebastian/diff": "^3.0.2",
+                "sebastian/environment": "^4.2.2",
+                "sebastian/exporter": "^3.1.1",
+                "sebastian/global-state": "^3.0.0",
                 "sebastian/object-enumerator": "^3.0.3",
-                "sebastian/resource-operations": "^2.0",
+                "sebastian/resource-operations": "^2.0.1",
+                "sebastian/type": "^1.1.3",
                 "sebastian/version": "^2.0.1"
             },
-            "conflict": {
-                "phpunit/phpunit-mock-objects": "*"
-            },
             "require-dev": {
                 "ext-pdo": "*"
             },
             "suggest": {
                 "ext-soap": "*",
                 "ext-xdebug": "*",
-                "phpunit/php-invoker": "^2.0"
+                "phpunit/php-invoker": "^2.0.0"
             },
             "bin": [
                 "phpunit"
@@ -784,7 +781,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "7.5-dev"
+                    "dev-master": "8.5-dev"
                 }
             },
             "autoload": {
@@ -810,7 +807,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2019-04-19T15:50:46+00:00"
+            "time": "2019-12-06T05:41:38+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -979,16 +976,16 @@
         },
         {
             "name": "sebastian/environment",
-            "version": "4.2.2",
+            "version": "4.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "f2a2c8e1c97c11ace607a7a667d73d47c19fe404"
+                "reference": "464c90d7bdf5ad4e8a6aea15c091fec0603d4368"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/f2a2c8e1c97c11ace607a7a667d73d47c19fe404",
-                "reference": "f2a2c8e1c97c11ace607a7a667d73d47c19fe404",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/464c90d7bdf5ad4e8a6aea15c091fec0603d4368",
+                "reference": "464c90d7bdf5ad4e8a6aea15c091fec0603d4368",
                 "shasum": ""
             },
             "require": {
@@ -1028,20 +1025,20 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2019-05-05T09:05:15+00:00"
+            "time": "2019-11-20T08:46:58+00:00"
         },
         {
             "name": "sebastian/exporter",
-            "version": "3.1.0",
+            "version": "3.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937"
+                "reference": "68609e1261d215ea5b21b7987539cbfbe156ec3e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/234199f4528de6d12aaa58b612e98f7d36adb937",
-                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/68609e1261d215ea5b21b7987539cbfbe156ec3e",
+                "reference": "68609e1261d215ea5b21b7987539cbfbe156ec3e",
                 "shasum": ""
             },
             "require": {
@@ -1068,6 +1065,10 @@
                 "BSD-3-Clause"
             ],
             "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                },
                 {
                     "name": "Jeff Welch",
                     "email": "whatthejeff@gmail.com"
@@ -1076,17 +1077,13 @@
                     "name": "Volker Dusch",
                     "email": "github@wallbash.com"
                 },
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@2bepublished.at"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
+                },
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
                 }
             ],
             "description": "Provides the functionality to export PHP variables for visualization",
@@ -1095,27 +1092,30 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2019-09-14T09:02:43+00:00"
         },
         {
             "name": "sebastian/global-state",
-            "version": "2.0.0",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4"
+                "reference": "edf8a461cf1d4005f19fb0b6b8b95a9f7fa0adc4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/edf8a461cf1d4005f19fb0b6b8b95a9f7fa0adc4",
+                "reference": "edf8a461cf1d4005f19fb0b6b8b95a9f7fa0adc4",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": "^7.2",
+                "sebastian/object-reflector": "^1.1.1",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "ext-dom": "*",
+                "phpunit/phpunit": "^8.0"
             },
             "suggest": {
                 "ext-uopz": "*"
@@ -1123,7 +1123,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0-dev"
+                    "dev-master": "3.0-dev"
                 }
             },
             "autoload": {
@@ -1146,7 +1146,7 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2017-04-27T15:39:26+00:00"
+            "time": "2019-02-01T05:30:01+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
@@ -1335,6 +1335,52 @@
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
             "time": "2018-10-04T04:07:39+00:00"
         },
+        {
+            "name": "sebastian/type",
+            "version": "1.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/type.git",
+                "reference": "3aaaa15fa71d27650d62a948be022fe3b48541a3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/3aaaa15fa71d27650d62a948be022fe3b48541a3",
+                "reference": "3aaaa15fa71d27650d62a948be022fe3b48541a3",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^8.2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Collection of value objects that represent the types of the PHP type system",
+            "homepage": "https://github.com/sebastianbergmann/type",
+            "time": "2019-07-02T08:10:15+00:00"
+        },
         {
             "name": "sebastian/version",
             "version": "2.0.1",
@@ -1380,16 +1426,16 @@
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.11.0",
+            "version": "v1.13.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "82ebae02209c21113908c229e9883c419720738a"
+                "reference": "f8f0b461be3385e56d6de3dbb5a0df24c0c275e3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/82ebae02209c21113908c229e9883c419720738a",
-                "reference": "82ebae02209c21113908c229e9883c419720738a",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/f8f0b461be3385e56d6de3dbb5a0df24c0c275e3",
+                "reference": "f8f0b461be3385e56d6de3dbb5a0df24c0c275e3",
                 "shasum": ""
             },
             "require": {
@@ -1401,7 +1447,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.11-dev"
+                    "dev-master": "1.13-dev"
                 }
             },
             "autoload": {
@@ -1417,13 +1463,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                },
                 {
                     "name": "Gert de Pagter",
                     "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
                 }
             ],
             "description": "Symfony polyfill for ctype functions",
@@ -1434,20 +1480,20 @@
                 "polyfill",
                 "portable"
             ],
-            "time": "2019-02-06T07:57:58+00:00"
+            "time": "2019-11-27T13:56:44+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.2",
+            "version": "1.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "1c42705be2b6c1de5904f8afacef5895cab44bf8"
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/1c42705be2b6c1de5904f8afacef5895cab44bf8",
-                "reference": "1c42705be2b6c1de5904f8afacef5895cab44bf8",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
                 "shasum": ""
             },
             "require": {
@@ -1474,36 +1520,33 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2019-04-04T09:56:43+00:00"
+            "time": "2019-06-13T22:48:21+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.4.0",
+            "version": "1.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9"
+                "reference": "573381c0a64f155a0d9a23f4b0c797194805b925"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/83e253c8e0be5b0257b881e1827274667c5c17a9",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/573381c0a64f155a0d9a23f4b0c797194805b925",
+                "reference": "573381c0a64f155a0d9a23f4b0c797194805b925",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.3.3 || ^7.0",
                 "symfony/polyfill-ctype": "^1.8"
             },
+            "conflict": {
+                "vimeo/psalm": "<3.6.0"
+            },
             "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
+                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.3-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "Webmozart\\Assert\\": "src/"
@@ -1525,7 +1568,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2018-12-25T11:19:39+00:00"
+            "time": "2019-11-24T13:36:37+00:00"
         }
     ],
     "aliases": [],