def id_generator(unique_id: str, sensor_type: str) -> str:
    """Generate id based on unique_id and sensor type.

    :param unique_id: str: common part of id for all entities, device unique_id, as a rule
    :param sensor_type: str: different part of id, sensor type, as s rule
    :returns: str: unique_id+sensor_type
    """
    return unique_id + sensor_type