导包调整

src/app/api/role.py

@@ -2,9 +2,8 @@ import json
 
 from flask import request, jsonify, current_app
 from flask_restx import Resource, Namespace, reqparse
-from sqlalchemy import select, insert, update, delete
+from sqlalchemy import select, insert, update, delete, func
 from sqlalchemy.orm import Session
-from sqlalchemy import func
 
 from app.database import engine
 from app.defines import StatesCode

src/app/api/users.py

@@ -1,5 +1,5 @@
 import json
-from io import BytesIO, StringIO
+from io import StringIO
 
 from flask import request, jsonify, Response
 from flask_restx import Resource, Namespace, reqparse