@classmethod
    def find_problems(cls):  # pragma: no cover
        raise NotImplementedError
reduce the tokens from the list lst, and try to return a 0/1 result
dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.find_problems--crossover with--dataset/ETHPy150Open appcelerator-archive/poc-nodejs-desktop/Resources/nodejs/builds/linux/node/lib/node/wafadmin/Tools/preproc.py/eval_macro