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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 clone(cls, constraint, model=None, **kwargs):
 """ Make a copy of another constraint. The constraint being copied can be of the same type or belong to a different solver interface. Parameters constraint: interface.Constraint (or subclass) The constraint to copy model: Model or None The variables of the new constraint will be taken from this model. If None, new variables will be constructed. Example """

        return cls(cls._substitute_variables(constraint, model=model), lb=constraint.lb, ub=constraint.ub,
                   indicator_variable=constraint.indicator_variable, active_when=constraint.active_when,
                   name=constraint.name, sloppy=True, **kwargs)