public LambdaInHandler(
	Action onPush,
	Action onUpstreamFinish = null,
	Action<Exception> onUpstreamFailure = null
)

new : 
        onPush : Action * 
        ?onUpstreamFinish : Action * 
        ?onUpstreamFailure : Action<Exception> 
(* Defaults:
        let _onUpstreamFinish = defaultArg onUpstreamFinish null
        let _onUpstreamFailure = defaultArg onUpstreamFailure null
*)
-> LambdaInHandler