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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, f):
 """Function returning the complex conjugate of a result."""

        def f_conj(x, **kwargs):
            result = np.asarray(f(x, **kwargs),
                                dtype=self.scalar_out_dtype)
            return result.conj()

        if is_real_dtype(self.out_dtype):
            return f
        else:
            return self.element(f_conj)