Added lib PHP_DS for some data structures.

composer.json

@@ -16,6 +16,7 @@
         "easycorp/easyadmin-bundle": "^4.10",
         "nelmio/api-doc-bundle": "^4.30",
         "nelmio/cors-bundle": "^2.4",
+        "php-ds/php-ds": "^1.5",
         "phpdocumentor/reflection-docblock": "^5.4",
         "phpstan/phpdoc-parser": "^1.28",
         "runtime/frankenphp-symfony": "^0.2.0",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "974cb22b15d6dc64bd6dac49da5d671d",
+    "content-hash": "03b299c4c2e514090c879c8f71219e56",
     "packages": [
         {
             "name": "composer/semver",
@@ -1686,6 +1686,61 @@
             },
             "time": "2023-11-30T16:41:19+00:00"
         },
+        {
+            "name": "php-ds/php-ds",
+            "version": "v1.5.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-ds/polyfill.git",
+                "reference": "7b2c5f1843466d50769a0682ce6fa9ddaaa99cb4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-ds/polyfill/zipball/7b2c5f1843466d50769a0682ce6fa9ddaaa99cb4",
+                "reference": "7b2c5f1843466d50769a0682ce6fa9ddaaa99cb4",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "php": ">=7.0"
+            },
+            "provide": {
+                "ext-ds": "1.5.0"
+            },
+            "require-dev": {
+                "php-ds/tests": "^1.5"
+            },
+            "suggest": {
+                "ext-ds": "to improve performance and reduce memory usage"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Ds\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Rudi Theunissen",
+                    "email": "[email protected]"
+                }
+            ],
+            "keywords": [
+                "data structures",
+                "ds",
+                "php",
+                "polyfill"
+            ],
+            "support": {
+                "issues": "https://github.com/php-ds/polyfill/issues",
+                "source": "https://github.com/php-ds/polyfill/tree/v1.5.0"
+            },
+            "time": "2023-12-19T16:52:21+00:00"
+        },
         {
             "name": "phpdocumentor/reflection-common",
             "version": "2.2.0",