public function block($twitter_id, $parameters = [])
    {
        if (!is_numeric($twitter_id)) {
            return false;
        }
        $slug = 'blocks/create';
        $default_parameters = [
            'user_id' => $twitter_id,
            'include_entities'    => false,
            'skip_status'    => false,
        ];
        $parameters = array_merge($default_parameters, $parameters);
        return $this->post($slug, $parameters);
    }