docs: def get_energy_management_properties(self):
          """
          Return the energy management properties of the CPC.
  
          The returned energy management properties are a subset of the
          properties of the CPC resource, and are also available as normal
          properties of the CPC resource. In so far, there is no new data
          provided by this method. However, because only a subset of the
          properties is returned, this method is faster than retrieving the
          complete set of CPC properties (e.g. via
          :meth:`~zhmcclient.BaseResource.pull_full_properties`).
  
          This method performs the HMC operation "Get CPC Energy Management
          Data", and returns only the energy management properties for this CPC
          from the operation result. Note that in non-ensemble mode of a CPC, the
          HMC operation result will only contain data for the CPC alone.
  
          It requires that the feature "Automate/advanced management suite"
          (FC 0020) is installed and enabled, and returns empty values for most
          properties, otherwise.
  
          Authorization requirements:
  
          * Object-access permission to this CPC.
  
          Returns:
  
            dict: A dictionary of properties of the CPC that are related to
            energy management. For details, see section "Energy management
            related additional properties" in the data model for the CPC
            resource in the :term:`HMC API` book.
  
          Raises:
  
            :exc:`~zhmcclient.HTTPError`: See the HTTP status and reason codes of
              operation "Get CPC Energy Management Data" in the :term:`HMC API`
              book.
            :exc:`~zhmcclient.ParseError`: Also raised by this method when the
              JSON response could be parsed but contains inconsistent data.
            :exc:`~zhmcclient.AuthError`
            :exc:`~zhmcclient.ConnectionError`
          """
          result = self.manager.session.get(self.uri + '/energy-management-data')
          em_list = result['objects']
          if len(em_list) != 1:
              uris = [em_obj['object-uri'] for em_obj in em_list]
              raise ParseError("Energy management data returned for no resource "
                               "or for more than one resource: %r" % uris)
          em_cpc_obj = em_list[0]
          if em_cpc_obj['object-uri'] != self.uri:
              raise ParseError("Energy management data returned for an "
                               "unexpected resource: %r" %
                               em_cpc_obj['object-uri'])
          if em_cpc_obj['error-occurred']:
              raise ParseError("Errors occurred when retrieving energy "
                               "management data for CPC. Operation result: %r" %
                               result)
          cpc_props = em_cpc_obj['properties']
          return cpc_props