/**
  * Inject C3 Content to AMIMOTO Dashboard
  *
  * @access public
  * @since 4.2.0
  * @param string $html
  * @return string
  **/
 public function inject_c3_admin_content($html)
 {
     $root = C3_Admin::get_instance();
     $html .= '<hr/>';
     $html .= $root->inject_to_amimoto_dashboard();
     return $html;
 }
 /**
  * Get Instance Class
  *
  * @return C3_Admin
  * @since 4.0.0
  * @access public
  */
 public static function get_instance()
 {
     if (!isset(self::$instance)) {
         $c = __CLASS__;
         self::$instance = new $c();
     }
     return self::$instance;
 }
 /**
  *  Define C3 plugin menus
  *
  * @access public
  * @param none
  * @since 4.0.0
  */
 public function define_menus()
 {
     $root = C3_Admin::get_instance();
     add_menu_page(__('CloudFront Settings', self::$text_domain), __('CloudFront Settings', self::$text_domain), 'administrator', self::MENU_ID, array($root, 'init_panel'));
 }