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A generic function that takes in as a parameter one list of numbers and determines if two of the numbers in the list add to a particular number is given below:The FunctionDROP_VALUE = lambda _:_def split_by_key(seq, resultmapping, keyfunc, default=DROP_VALUE): """Split a sequence into lists based on a key function. seq - input sequence resultmapping - a dictionary that maps from target lists to keys that go to that list keyfunc - function to calculate the key of an input value default - the target where items that don't have a corresponding key go, by default they are dropped """ result_lists = dict((key, []) for key in resultmapping) appenders = dict( (key, result_lists[target].append) for target, keys in resultmapping.items() for key in keys) if default is not DROP_VALUE: result_lists.setdefault(default, []) default_action = result_lists[default].append else: default_action = DROP_VALUE for item in seq: appenders.get(keyfunc(item), default_action)(item) return result_listsRead more about functions in python here:https://brainly.com/question/18521637#SPJ1