@classmethod
    def get_non_private(cls):
        return ExpSummaryModel.query().filter(
            ExpSummaryModel.status != feconf.ACTIVITY_STATUS_PRIVATE
        ).filter(
            ExpSummaryModel.deleted == False  # pylint: disable=singleton-comparison
        ).fetch(feconf.DEFAULT_QUERY_LIMIT)
If `required=False` then a field may be omitted from the input.
dataset/ETHPy150Open oppia/oppia/core/storage/exploration/gae_models.py/ExpSummaryModel.get_non_private--crossover with--dataset/ETHPy150Open tomchristie/django-rest-framework/tests/test_fields.py/TestEmpty.test_not_required