public function get_help_tabs() {
    $help_tabs = $this->_help_tabs;

    $priorities = array();
    foreach ( $help_tabs as $help_tab ) {
      if ( isset( $priorities[ $help_tab['priority'] ] ) ) {
        $priorities[ $help_tab['priority'] ][] = $help_tab;
      } else {
        $priorities[ $help_tab['priority'] ] = array( $help_tab );
      }
    }

    ksort( $priorities );

    $sorted = array();
    foreach ( $priorities as $list ) {
      foreach ( $list as $tab ) {
        $sorted[ $tab['id'] ] = $tab;
      }
    }

    return $sorted;
  }