MethodAddGraphNodeAddGraphNode add one kind of Graph[I, O]、Chain[I, O]、StateChain[I, O, S] as a node. for Graph[I, O], comes from NewGraph[I, O]() for Chain[I, O], come
compose/graph.go:441
MethodAddLambdaNodeAddLambdaNode add node that implements at least one of Invoke[I, O], Stream[I, O], Collect[I, O], Transform[I, O]. due to the lack of supporting metho
compose/graph.go:433