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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 jacobian_singular(self):
 """ Returns True if Jacobian is singular, else False. """

        cses, (jac_in_cses,) = self.be.cse(self.get_jac())
        if jac_in_cses.nullspace():
            return True
        else:
            return False