The class provides methods to execute goals and to access queue streams to communicate with the running goal.
The function returns when the posted goals have finished executing. Since a separate thread is actually executing the goals though, events may be received by the Visual Basic program during the execution of this function. It is an error to call this function recursively while handling one of these events.
Unlike ResumeAsync, calls to RPC can be nested and can be used from within VB Stream event handlers.