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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def serialize(self, as_dict=False, sort=None):
 """ Dump built files as a list or dictionary, for JSON or other serialization. sort: a key function to sort a list, or simply True """

        files = getattr(self, 'files', self.run())

        if as_dict:
            return dict((fn, p.to_dict()) for fn, p in files.items())

        # generate a list
        data = (p.to_dict() for p in files.values())

        if callable(sort):
            return sorted(data, key=sort)

        elif sort is True:
            return sorted(data)

        return list(data)