Minor optimization.

src/Collection.php

@@ -360,7 +360,7 @@ public function pluck($pluck, $default = null): BaseInterface
      */
     public function prepend(...$items): BaseInterface
     {
-        return $this->run(new Prepend($items));
+        return $this->run(new Prepend(...$items));
     }
 
     /**

src/Operation/Prepend.php

@@ -36,8 +36,6 @@ public function on(iterable $collection): Closure
         $items = $this->items;
 
         return static function () use ($items, $collection): Generator {
-            [$items] = $items;
-
             foreach ($items as $item) {
                 yield $item;
             }

src/Operation/RSample.php

@@ -34,10 +34,12 @@ public function on(iterable $collection): Closure
     {
         $probability = $this->probability;
 
-        $callback = static function ($item) use ($probability): bool {
-            return (mt_rand() / mt_getrandmax()) < $probability;
-        };
-
-        return (new Filter($callback))->on($collection);
+        return (
+            new Filter(
+                static function () use ($probability): bool {
+                    return (mt_rand() / mt_getrandmax()) < $probability;
+                }
+            )
+        )->on($collection);
     }
 }