[DEPRECATED] Replaced by  Function::factory.

::

 jacobian_old(self, int iind, int oind) -> Function

Extra doc: https://github.com/casadi/casadi/wiki/L_1w4

Doc source: https://github.com/casadi/casadi/blob/develop/casadi/core/function.hpp#L466

Implementation: https://github.com/casadi/casadi/blob/develop/casadi/core/function.cpp#L856-L862

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