FlowHandle(id: StateMachineRunId, progress: <ERROR CLASS><String>, returnValue: <ERROR CLASS><A>)
FlowHandle is a serialisable handle for the started flow, parameterised by the type of the flows return value.
id
- The started state machines ID.progress
- The stream of progress tracker events.returnValue
- An Observable emitting a single event containing the flows return value.
To block on this value:
val returnValue = rpc.startFlow(::MyFlow).returnValue.toBlocking().first()