def validate(self, model, num_ngrams, batch_size, num_batches):
        raise NotImplementedError("Override this function.")
No child elements, child elements required. Report error.
dataset/ETHPy150Open yuhaozhang/nnjm-global/code/train_util.py/TrainModel.validate--crossover with--dataset/ETHPy150Open typesupply/woffTools/Lib/woffTools/test/test_validate.py/metadataAbstractElementRequiredChildElementTest1