src/Support/AccessProtectedTrait.php
protected function createProtectedCaller($instance)
    {
        $closure = function ($method, $args) {
            $callable = [$this, $method];

            return call_user_func_array($callable, $args);
        };

        return $closure->bindTo($instance, $instance);
    }
protected function createProtectedCaller($instance)
    {
        $closure = function ($method, $args) {
            $callable = [$this, $method];

            return call_user_func_array($callable, $args);
        };

        return $closure->bindTo($instance, $instance);
    }
Create closure to call inaccessible method.

@param $instance
@return \Closure