code: def get_metric_values_response(self):
          
          mv_list = self.get_metric_values()
          resp_lines = []
          for mv in mv_list:
              group_name = mv[0]
              resp_lines.append('"{}"'.format(group_name))
              mo_vals = mv[1]
              for mo_val in mo_vals:
                  resp_lines.append('"{}"'.format(mo_val.resource_uri))
                  resp_lines.append(
                      str(timestamp_from_datetime(mo_val.timestamp)))
                  v_list = []
                  for n, v in mo_val.values:
                      if isinstance(v, six.string_types):
                          v_str = '"{}"'.format(v)
                      else:
                          v_str = str(v)
                      v_list.append(v_str)
                  v_line = ','.join(v_list)
                  resp_lines.append(v_line)
                  resp_lines.append('')
              resp_lines.append('')
          resp_lines.append('')
          return '\n'.join(resp_lines) + '\n'
docs: Get the faked metrics, for all metric groups and all resources that
          have been prepared on the manager object of this context object, as a
          string in the format needed for the "Get Metrics" operation response.
  
          Returns:
  
            "MetricsResponse" string as described for the "Get Metrics"
              operation response.