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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 inverse(self):
 """Inverse of the inverse, the forward FT."""

        sign = '+' if self.sign == '-' else '-'
        return FourierTransform(
            domain=self.range, range=self.domain, impl=self.impl,
            axes=self.axes, halfcomplex=self.halfcomplex, shift=self.shifts,
            sign=sign, tmp_r=self._tmp_r, tmp_f=self._tmp_f)