def __init__(self, *functions):
        self.functions = {}
        for function in functions:
            self.add_function(function)
Build a list of nodes "soft" linked. This means that each has an id
dataset/ETHPy150Open stepank/pyws/src/pyws/functions/managers.py/FixedFunctionManager.__init__--crossover with--dataset/ETHPy150Open appnexus/schema-tool/schematool/util/chain.py/ChainUtil.build_soft_chain