code: def create(self, properties):
          
          result = self.session.post('/api/services/metrics/context',
                                     body=properties)
          mc_properties = properties.copy()
          mc_properties.update(result)
          new_metrics_context = MetricsContext(self,
                                               result['metrics-context-uri'],
                                               None,
                                               mc_properties)
          self._metrics_contexts.append(new_metrics_context)
          return new_metrics_context
docs: Create a :term:`Metrics Context` resource in the HMC this client is
          connected to.
  
          Parameters:
  
            properties (dict): Initial property values.
              Allowable properties are defined in section 'Request body contents'
              in section 'Create Metrics Context' in the :term:`HMC API` book.
  
          Returns:
  
            :class:`~zhmcclient.MetricsContext`:
              The resource object for the new :term:`Metrics Context` resource.
  
          Raises:
  
            :exc:`~zhmcclient.HTTPError`
            :exc:`~zhmcclient.ParseError`
            :exc:`~zhmcclient.AuthError`
            :exc:`~zhmcclient.ConnectionError`