    # File lib/fog/rackspace/models/identity/user.rb, line 16
            def save
              requires :username, :email, :enabled
              if identity.nil?
                data = connection.create_user(username, email, enabled, :password => password)
              else
                data = connection.update_user(identity, username, email, enabled, :password => password)
              end
              merge_attributes(data.body['user'])
              true
            end