lugu/qiloop

@startuml
    ...

    Client  -> Service: **call**: service.method()
    Client <-  Service: **reply**: result
    ...
    Client  -> Service: **call**: service.unkown()
    Client <-  Service: **error**:
    ...
    Client  -> Service: **call**: service.registerEvent(...)
    Client <-  Service: **reply**
    Client <-  Service: **event**: new value
    Client <-  Service: **event**: new value
    ...

@enduml