def __init__(self, *args, **kwargs):
        all_fields = (fields.DateField(), fields.TimeField())
        super(SplitDateTimeField, self).__init__(all_fields, *args, **kwargs)
Have to pass a list of field types to the constructor, else we
dataset/ETHPy150Open benadida/helios-server/helios/fields.py/SplitDateTimeField.__init__