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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 assign(self, other):
 """Assign ``other`` to ``self``. This is implemented without `FunctionSpace.lincomb` to ensure that ``self == other`` evaluates to True after ``self.assign(other)``. """

        if other not in self.space:
            raise TypeError('`other` {!r} is not an element of the space '
                            '{} of this function'
                            ''.format(other, self.space))
        self._call_in_place = other._call_in_place
        self._call_out_of_place = other._call_out_of_place
        self._call_has_out = other._call_has_out
        self._call_out_optional = other._call_out_optional