Toy workflow

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flatten(inputs, outputs, depth) {
	for (i = inputs.iterator(); i.hasNext();) {
	    element = i.next();
		if (element instanceof Collection && depth > 0) {
			flatten(element, outputs, depth - 1);
		} else {
			outputs.add(element);
		}
	}
}

outputlist = new ArrayList();

flatten(inputlist, outputlist, 1);

Source	Sink
input2	Flatten_List:inputlist
Flatten_List:outputlist	Workflow7:input1
Workflow7:output1	output2

Toy workflow

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