code: def get_metrics(self):
          
          metrics_response = self.manager.session.get(self.uri)
          return metrics_response
docs: Retrieve the current metric values for this :term:`Metrics Context`
          resource from the HMC.
  
          The metric values are returned by this method as a string in the
          `MetricsResponse` format described with the 'Get Metrics' operation in
          the :term:`HMC API` book.
  
          The :class:`~zhmcclient.MetricsResponse` class can be used to process
          the `MetricsResponse` string returned by this method, and provides
          structured access to the metrics values.
  
          Returns:
  
            :term:`string`:
              The current metric values, in the `MetricsResponse` string format.
  
          Raises:
  
            :exc:`~zhmcclient.HTTPError`
            :exc:`~zhmcclient.ParseError`
            :exc:`~zhmcclient.AuthError`
            :exc:`~zhmcclient.ConnectionError`