Update ::get() method.

README.md

@@ -154,7 +154,7 @@ $square = new class() extends Operation {
      */
     public function run(CollectionInterface $collection): CollectionInterface
     {
-        return $collection::withClosure(
+        return Collection::withClosure(
             static function () use ($collection) {
                 foreach ($collection as $item) {
                     yield $item ** 2;

composer.json

@@ -23,6 +23,7 @@
         "drupol/phpspec-annotation": "^1.2",
         "drupol/phpspec-code-coverage": "^5",
         "infection/infection": "^0.13",
+        "phpbench/phpbench": "^0.16.9",
         "phpspec/phpspec": "^5",
         "phpstan/phpstan": "^0.11",
         "phpstan/phpstan-strict-rules": "^0.11.1",
@@ -36,9 +37,14 @@
             "drupol\\collection\\": "./src/"
         }
     },
+    "autoload-dev": {
+        "psr-4": {
+            "drupol\\collection\\benchmarks\\": "./benchmarks/"
+        }
+    },
     "scripts": {
         "apigen": "./vendor/bin/apigen generate src --destination build/docs",
-        "bench": "./vendor/bin/phpbench run --report=project --store --precision=3",
+        "bench": "./vendor/bin/phpbench run --report='generator: \"table\", cols: [ \"suite\", \"subject\", \"mean\", \"diff\", \"mem_peak\", \"mem_real\"], break: [\"benchmark\"]'",
         "codacy": "./vendor/bin/codacycoverage clover build/logs/clover.xml",
         "grumphp": "./vendor/bin/grumphp run",
         "infection": "./vendor/bin/infection run -j 10",

spec/drupol/collection/CollectionSpec.php

@@ -352,10 +352,6 @@ public function it_can_get(): void
             ->get(4)
             ->shouldReturn('E');
 
-        $this
-            ->get()
-            ->shouldBeNull();
-
         $this
             ->get('unexistent key', 'default')
             ->shouldReturn('default');

src/Collection.php

@@ -173,12 +173,8 @@ public function forget(...$keys): CollectionInterface
     /**
      * {@inheritdoc}
      */
-    public function get($key = null, $default = null)
+    public function get($key, $default = null)
     {
-        if (null === $key) {
-            return;
-        }
-
         foreach ($this->getIterator() as $outerKey => $outerValue) {
             if ($outerKey === $key) {
                 return $outerValue;

src/Contract/Collection.php

@@ -114,7 +114,7 @@ public function forget(...$keys): self;
      *
      * @return mixed
      */
-    public function get($key = null, $default = null);
+    public function get($key, $default = null);
 
     /**
      * Get the values iterator.