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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 stack_pop(self, num_items: int=1, type_hint: str=None) -> Any: # TODO: Needs to be replaced with """ Pop and return a number of items equal to ``num_items`` from the stack. ``type_hint`` can be either ``'uint256'`` or ``'bytes'``. The return value will be an ``int`` or ``bytes`` type depending on the value provided for the ``type_hint``. Raise `eth.exceptions.InsufficientStack` if there are not enough items on the stack. """

        return self._stack.pop(num_items, type_hint)