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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 numeric(self, A, F):
 """ Return the numeric factorization of sparse matrix ``A`` using symbolic factorization ``F`` Parameters A Sparse matrix F Symbolic factorization Returns ------- N Numeric factorization of ``A`` """

        if self.sparselib == 'umfpack':
            return umfpack.numeric(A, F)

        elif self.sparselib == 'klu':
            return klu.numeric(A, F)