ORM Model class 用于 DB 中的现有表

Question

ORM Model class for Existing table in DB from MicrosoftSqlServer, I tried but seems to be wrong this one is not a ORM, I don't know how to write ORM query can some one please help me. 下面是我的代码可以帮助我转换这个基于 ORM 的 model class

from sqlalchemy import create_engine, select, MetaData, Table, and_ 

import json, boto3, os
from tests import test_dir

filename = os.path.join(test_dir, 'config.json')
with open(filename, 'r') as secret_data:
    data = json.load(secret_data)
try:
    session = boto3.session.Session()
    client = session.client(
        service_name='secretsmanager',
        region_name=data['region_name']
    )

    get_secret_value_response = client.get_secret_value(
        SecretId=data['secret_name']
    )
    response = json.loads(get_secret_value_response['SecretString'])
except Exception as e:
    raise e

SERVER = response['server']
DATABASE = response['database']
DRIVER = 'SQL Server'
USERNAME = response['username']
PASSWORD = response['password'].strip()
DB_URL = f"mssql://{USERNAME}:{PASSWORD}@{SERVER}/{DATABASE}?driver={DRIVER}"
engine = create_engine(DB_URL)
metadata = MetaData(bind=None)
table = Table(
    'Alias_Drug_List',
    metadata,
    autoload=True,
    autoload_with=engine
)

newDrug = select([table.columns.Alias,table.columns.NDC]).where(and_(table.columns.NDC == 'New Drug Cycle'))
activeDrug = select([table.columns.Alias])
connection = engine.connect()
new_drug = connection.execute(newDrug).fetchall()
active_drug = connection.execute(activeDrug).fetchall()