Transform this SourceTOut, TMat by appending the given processing steps. The materialized value of the combined SourceTOut, TMat will be the materialized value of the current flow (ignoring the other flow’s value), use ViaMaterializedTOut2, TMat2, TMat3(IGraphFlowShapeTOut, TOut2, TMat2, FuncTMat, TMat2, TMat3) if a different strategy is needed.

public Source<T2, TMat> Via<T2, TMat2>(
	IGraph<FlowShape<TOut, T2>, TMat2> flow
)

member Via : 
        flow : IGraph<FlowShape<'TOut, 'T2>, 'TMat2> -> Source<'T2, 'TMat>