def swapEvaluator(newEvaluator):
    global _evaluator
    oldEval = _evaluator
    _evaluator = newEvaluator
    return oldEval
Swap out the evaluator. returns the old one, so it can be put back later
dataset/ETHPy150Open ufora/ufora/ufora/FORA/python/Evaluator/Evaluator.py/swapEvaluator