<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def conjugate(self):
 """The element-wise conjugate matrix This is defined only if all the entries in the matrix have a defined conjugate (i.e., they have a `conjugate` method). This is *not* the case for a matrix of operators. In such a case, only an :meth:`elementwise` :func:`adjoint` would be applicable, but this is mathematically different from a complex conjugate. Raises: NoConjugateMatrix: if any entries have no `conjugate` method """

        try:
            return Matrix(np_conjugate(self.matrix))
        except AttributeError:
            raise NoConjugateMatrix(
                "Matrix %s contains entries that have no defined "
                "conjugate" % str(self))