Adds tap for Higher Order tests

src/Support/HigherOrderCallables.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Support;
+
+/**
+ * @internal
+ */
+final class HigherOrderCallables
+{
+    /**
+     * @var object
+     */
+    private $target;
+
+    public function __construct(object $target)
+    {
+        $this->target = $target;
+    }
+
+    /**
+     * @template TValue
+     *
+     * @param callable(): TValue $callable
+     *
+     * @return TValue|object
+     */
+    public function tap(callable $callable)
+    {
+        return Reflection::bindCallable($callable) ?? $this->target;
+    }
+}