如何使用SQLAlachemy进行选择？

from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy import select

engine = create_engine('数据库连接字符串')

Session = sessionmaker(bind=engine)
session = Session()

from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column, Integer, String

Base = declarative_base()

class User(Base):
    __tablename__ = 'users'
    id = Column(Integer, primary_key=True)
    name = Column(String)
    age = Column(Integer)

stmt = select(User).where(User.age > 18)
result = session.execute(stmt)
for row in result:
    print(row.name, row.age)