    # File lib/fog/rackspace/requests/identity/list_credentials.rb, line 5
            def list_credentials(user_id)
              response = request(
                :expects => [200, 203],
                :method => 'GET',
                :path => "users/#{user_id}/OS-KSADM/credentials"
              )

              unless response.body['credentials'].is_a?(Array)
                response.body['credentials'] = [response.body['credential']]
                response.body.delete('credential')
              end

              response
            end