code: def service_action(self, service, action):
          "Perform given action on service for the selected cluster"
          try:
              service = api.get_cluster(self.cluster).get_service(service)
          except ApiException:
              print("Service not found")
              return None
  
          if action == "start":
              service.start()
          if action == "restart":
              service.restart()
          if action == "stop":
              service.stop()
  
          return Truf service_action(self, service, action):
          "Perform given action on service for the selected cluster"
          try:
              service = api.get_cluster(self.cluster).get_service(service)
          except ApiException:
              print("Service not found")
              return None
  
          if action == "start":
              service.start()
          if action == "restart":
              service.restart()
          if action == "stop":
              service.stop()
  
          return True
docs: Perform given action on service for the selected cluster