fewbricks\acf\fields\flexible_content::add_layout PHP Method

    public function add_layout($layout)
    {
        $this->settings['layouts'][] = $layout->get_settings();
        return $layout;
    }

 /**
  *
  */
 public function set_fields()
 {
     $fc = new acf_fields\flexible_content('Modules', 'modules', '1509111554i');
     $l = new layout('', 'l1', '1509111555a');
     $l->add_brick(new demo_video('video', '1509111556x'));
     $fc->add_layout($l);
     $l = new layout('', 'l2', '1509111557u');
     $l->add_brick(new demo_button('button', '1509111556s'));
     $fc->add_layout($l);
     $this->add_flexible_content($fc);
 }