public function scope(Scope $scope)
    {
        $callable = $scope->getQuery();

        if (is_string($callable)) {
            /*
             * Adds a Class "ClassName::class" syntax.
             *
             * @note In this case Query class should implement Contracts\Module\Queryable interface.
             * @example: (new Scope('name'))->setQuery(Queryable::class);
             */
            if (class_exists($callable)) {
                $object = app($callable);

                if (!method_exists($object, 'query')) {
                    throw new \Terranet\Administrator\Exception(
                        sprintf(
                            'Query object %s should implement %s interface',
                            get_class($object),
                            \Terranet\Administrator\Contracts\Module\Queryable::class
                        )
                    );
                }

                $this->query = $object->query($this->query);

                return $this;
            }

            /*
             * Allows "SomeClass@method" syntax.
             *
             * @example: (new Scope('name'))->addQuery("User@active")
             */
            if (str_contains($callable, '@')) {
                list($object, $method) = explode('@', $callable);

                $this->query = app($object)->$method($this->query);

                return $this;
            }
        }

        /*
         * Allows adding a \Closure as a query;
         *
         * @example: (new Scope('name'))->setQuery(function($query) { return $this->modify(); })
         */
        if ($callable instanceof Closure) {
            $this->query = $callable($this->query);

            return $this;
        }

        /*
         * Accepts callable builder
         *
         * @example: (new Scope('name'))->setQuery([SomeClass::class, "queryMethod"]);
         */
        if (is_callable($callable)) {
            list($object, $method) = $callable;

            if (is_string($object)) {
                $object = app($object);
            }

            // Call Model Scope immediately when detected.
            //
            // @note: We don't use call_user_func_array() here
            // because of missing columns in returned query.
            $this->query = with(
                $this->model->is($object) ? $this->query : $object
            )->{$method}($this->query);
        }

        return $this;
    }