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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 cache_fake_input(cls, weld_input_id, fake_weld_input):
 """Cache the fake Weld input to be seen by LazyResult.evaluate Parameters weld_input_id : str Generated when registering the fake_weld_input in WeldObject.update. fake_weld_input : _FakeWeldInput The fake Weld input previously generated by create_fake_array_input. """

        assert isinstance(weld_input_id, str)
        assert isinstance(fake_weld_input, _FakeWeldInput)

        Cache._cache[weld_input_id] = fake_weld_input