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: super_user.rb
    path of file: ./repos/sequencescape/app/models/ability/shared
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Prepend to an ability class to include SUper User privileges
# These privileges should be restricted to PSD only in future
# Currently awarded to all admins
module Ability::Shared::SuperUser
  def grant_privileg
    
  def grant_privileges # rubocop:todo Metrics/MethodLength
    super

    # More advanced user administration, such as the ability to add
    # and remove roles
    Rails.logger.debug { 'Granting SuperUser privileges' }

    can :manage, User

    # Changing help text
    can :manage, CustomText

    # Can edit existing plate purposes
    can :manage, [Purpose, PlatePurpose]
    can :manage, PlateTemplate
    can :manage, [Robot, RobotProperty]
    can :manage, FacultySponsor
    can :manage, ReferenceGenome
    can :manage, Role
    can %i[activate deactivate], Pipeline
    can :read, Ability
  end