code: public function register_admin_options_page() {
          add_submenu_page(
              $this->get_id(),
              $this->get_title(),
              $this->get_title(__('Settings', $this->get_textdomain())),
              'manage_options',
              $this->get_id('-settings'),
              array($this, 'render_admin_options_page')
          );
      }
docs: Registers administration menu for the plugin.
  
  @since 0.1.3
  @return void