public Task<RecordActivityTaskHeartbeatResponse> RecordActivityTaskHeartbeatAsync(RecordActivityTaskHeartbeatRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new RecordActivityTaskHeartbeatRequestMarshaller();
var unmarshaller = RecordActivityTaskHeartbeatResponseUnmarshaller.Instance;
return InvokeAsync<RecordActivityTaskHeartbeatRequest,RecordActivityTaskHeartbeatResponse>(request, marshaller,
unmarshaller, cancellationToken);
}