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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def return_single_real_id_base(dbpath, set_object, object_id):
 """ Generic function which returns a real_id string of an object specified by the object_id Parameters dbpath : string, path to SQLite database file set_object : object (either TestSet or TrainSet) which is stored in the database object_id : int, id of object in database Returns ------- real_id : string """

    engine = create_engine('sqlite:////' + dbpath)
    session_cl = sessionmaker(bind=engine)
    session = session_cl()
    tmp_object = session.query(set_object).get(object_id)
    session.close()
    return tmp_object.real_id