CronWorkflow is a cron workflow definition.

NewContextPropagator returns a context propagator that propagates a set of string key-value pairs across a workflow.

PublishEventActivity ...

PublishEventWorkflow ...

SetManager allow extenal to pass Manager instance to workflow.

WithdrawActivity ...

PropagateKey is the key used to store the value in the Context object.

Manager is a group of grpc clients.