如何在SQLAlchemy中添加到conflict_do_update上的列表？

from sqlalchemy import create_engine, Column, Integer, String, insert, text
from sqlalchemy.dialects.postgresql import insert as pg_insert
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

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

Base = declarative_base()

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

conflict_target = [MyTable.id]  # 冲突解决策略的目标列
update_columns = {
    MyTable.name: pg_insert.excluded.name  # 更新列和对应的值
}

insert_stmt = insert(MyTable).values(id=1, name='example')
insert_stmt = insert_stmt.on_conflict_do_update(
    index_elements=conflict_target,
    set_=update_columns
)

session.execute(insert_stmt)
session.commit()