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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 linsolve(self, A, b):
 """ Solve linear equation set ``Ax = b`` and store the solutions in ``b``. Parameters A Sparse matrix b RHS of the equation Returns ------- None """

        if self.sparselib == 'umfpack':
            return umfpack.linsolve(A, b)

        elif self.sparselib == 'klu':
            return klu.linsolve(A, b)