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: personal_key_concern.rb
    path of file: ./repos/identity-idp/app/controllers/concerns
    
    the code of the file until where you have to start completion: module PersonalKeyConcern
  delegate :active_profile, to: :current_user

  extend A
    
  def redirect_to_signin
    controller_info = "#{controller_path}##{action_name}"
    analytics.invalid_authenticity_token(
      controller: controller_info,
      user_signed_in: user_signed_in?,
    )
    sign_out
    flash[:error] = t('errors.general')
    redirect_to new_user_session_url
  end