如何使用sqlalchemy orm和core查询包含关键字列表的字符串列？

from sqlalchemy import create_engine, Column, Integer, String, text
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base

engine = create_engine("数据库连接字符串")
Session = sessionmaker(bind=engine)
session = Session()

Base = declarative_base()

class MyModel(Base):
    __tablename__ = 'my_table'
    
    id = Column(Integer, primary_key=True)
    keyword_list = Column(String)

result = session.query(MyModel).filter(MyModel.keyword_list.contains("关键字")).all()

stmt = text("SELECT * FROM my_table WHERE keyword_list LIKE :keyword")
result = session.execute(stmt, {"keyword": "%关键字%"}).fetchall()

for row in result:
    print(row.id, row.keyword_list)