在SQLAlchemy中填充表的最佳方法是什么？

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

# 创建引擎和会话
engine = create_engine('数据库连接字符串')
Session = sessionmaker(bind=engine)
session = Session()

# 定义模型类
Base = declarative_base()

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

# 创建表
Base.metadata.create_all(engine)

# 填充表
user = User(name='John', age=25)
session.add(user)
session.commit()