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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 conj(self, out=None):
 """Complex conjugate of this element. Parameters out : `DiscreteLpElement`, optional Element to which the complex conjugate is written. Must be an element of this element's space. Returns ------- out : `DiscreteLpElement` The complex conjugate element. If ``out`` is provided, the returned object is a reference to it. Examples -------- [ 5.-1.j, 3.-0.j, 2.+2.j, 0.-1.j] The out parameter allows you to avoid a copy: [ 5.-1.j, 3.-0.j, 2.+2.j, 0.-1.j] True It can also be used for in-place conjugation: [ 5.-1.j, 3.-0.j, 2.+2.j, 0.-1.j] True """

        if out is None:
            return self.space.element(self.tensor.conj())
        else:
            self.tensor.conj(out=out.tensor)
            return out