You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: manage_menu.rb
    path of file: ./repos/gitlabhq/lib/sidebars/organizations/menus
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Sidebars
  module Organizations
    module Menus
      class ManageMenu < ::Sidebars::Menu
        override :title
        def title
          s_('Navigat
    
        def activity_menu_item
          add_item(
            ::Sidebars::MenuItem.new(
              title: _('Activity'),
              link: activity_organization_path(context.container),
              super_sidebar_parent: ::Sidebars::Organizations::Menus::ManageMenu,
              active_routes: { path: 'organizations/organizations#activity' },
              item_id: :organization_activity
            )
          )
        end