# File lib/googleauth/user_refresh.rb, line 89
      def initialize options = {}
        options ||= {}
        options[:token_credential_uri] ||= TOKEN_CRED_URI
        options[:authorization_uri] ||= AUTHORIZATION_URI
        @project_id = options[:project_id]
        @project_id ||= CredentialsLoader.load_gcloud_project_id
        super options
      end