Need to hard code node names in decision functions

[ghost]

At the moment you need to hard code the node names from the pipeline in functions used for routing. For example (from the documentation):

def route_func(item):
    if item % 2 == 0:
        return 'even_node'
    else:
        return 'odd_node'

I created a helper function to get around this issue, but feel there must be a better way...

def route_decision(decision_function, yes_node, no_node, **kwargs):
    router_function = lambda item: decision_function(item, yes_node.name, no_node.name, **kwargs)
    return [yes_node, no_node, router_function]

This enables the function above to be re-written like:

def route_func(item, yes_node_name, no_node_name):
    if item % 2 == 0:
        return yes_node_name
    else:
        return no_node_name

It would be ideal if the framework didn't require any hard coding of the node names.