code: def get_service_key(self, service_name, key_name):
          
          for key in self._get_service_keys(service_name)['resources']:
              if key_name == key['entity']['name']:
                  guid = key['metadata']['guid']
  
                  uri = "/v2/service_keys/%s" % (guid)
                  return self.api.get(uri)
  
          return None
docs: Returns the service key details.
  
          Similar to `cf service-key`.