def is_valid_filter(self, filter):
        return isinstance(filter, filters.BaseFilter)
Return a formatter function for a range of timedeltas.
dataset/ETHPy150Open flask-admin/flask-admin/flask_admin/model/base.py/BaseModelView.is_valid_filter--crossover with--dataset/ETHPy150Open pydata/pandas/pandas/formats/format.py/_get_format_timedelta64