sqlalchemy_bundle_model
SQLAlchemy的扩展，可将聚合的列和子句视为模型
安装
$ pip install sqlalchemy-bundle-model
用法
>>> from sqlalchemy import Column, BigInteger, Text, ForeignKey
>>> from sqlalchemy.orm import declarative_base, relationship, sessionmaker
>>> from sqlalchemy.engine import create_engine
>>> from sqlalchemy_bundle_model import BundleModel, col
>>> DeclarativeBase = declarative_base()
>>> class User(De
