CreateHealthRequest creates an instance of health request message.

CreateHealthResult creates an instance of health result message.

CreateTerminateWorkerRequest creates an instance of terminate worker request message.

CreateTerminateWorkerRequest creates an instance of terminate worker result message.

HealthResultPayload contains information required by Core Agent to decide if a worker is healthy.

TerminateWorkerResultPayload contains worker termination result.

TopicType is the message type for IPC messages.

WorkerType is the type of the worker.