如何将SQLAlchemy查询转换为嵌套字典？

from sqlalchemy.orm import sessionmaker
from sqlalchemy import create_engine

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

result = session.query(Model).all()  # Model为对应的数据库模型类

def to_nested_dict(result):
    nested_dict = []
    for row in result:
        nested_row = {}
        for column in row.__table__.columns:
            nested_row[column.name] = getattr(row, column.name)
        nested_dict.append(nested_row)
    return nested_dict

nested_dict_result = to_nested_dict(result)