Initializes the states of all the stage logics by calling PreStart. The passed-in materializer is intended to be a SubFusingMaterializer that avoids creating new Actors when stages materialize sub-flows.If no such materializer is available, passing in null will reuse the normal materializer for the GraphInterpreter—fusing is only an optimization.

public void Init(
	IMaterializer subMaterializer
)

member Init : 
        subMaterializer : IMaterializer -> unit