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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 implement(self, implementation, for_type=None, for_types=None):
 """Registers an implementing function for for_type. Arguments: implementation: Callable implementation for this type. for_type: The type this implementation applies to. for_types: Same as for_type, but takes a tuple of types. for_type and for_types cannot both be passed (for obvious reasons.) Raises: ValueError """

        unbound_implementation = self.__get_unbound_function(implementation)
        for_types = self.__get_types(for_type, for_types)

        for t in for_types:
            self._write_lock.acquire()
            try:
                self.implementations.append((t, unbound_implementation))
            finally:
                self._write_lock.release()