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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 bool(self):

 """Return the bool of a single element PandasObject.
 
 This must be a boolean scalar value, either True or False. Raise a
 ValueError if the PandasObject does not have exactly 1 element, or that
 element is not boolean
 """

        shape = self.shape
        if shape != (1,) and shape != (1, 1):
            raise ValueError(
                """The PandasObject does not have exactly
                                1 element. Return the bool of a single
                                element PandasObject. The truth value is
                                ambiguous. Use a.empty, a.item(), a.any()
                                or a.all()."""
            )
        else:
            return self._to_pandas().bool()