def __is_valid(loc_data):
    """Determine if this can be valid data (not all 0's)."""
    for key, [value, func] in SENSOR_TYPES.items():
        if (key != CONDITION and key != STATIONNAME and key != MEASURED):
            if (func is not None):
                sens_data = loc_data.get(value)
                if func(sens_data) != 0:
                    return True
Determine if this can be valid data (not all 0's).