code: def test_model_repr(db: SQLAlchemy) -> None:
      class User(db.Model):
          id = sa.Column(sa.Integer, primary_key=True)
  
      db.create_all()
      user = User()
  
      if issubclass(db.Model, sa_orm.MappedAsDataclass):
          assert repr(user) == "test_model_repr.<locals>.User()"
      else:
          assert repr(user) == f"<User (transient {id(user)})>"
          db.session.add(user)
          assert repr(user) == f"<User (pending {id(user)})>"
          db.session.flush()
          assert repr(user) == f"<User {user.id}>"
  
imports: from __future__ import annotations
  import typing
  from datetime import datetime
  import pytest
  import sqlalchemy
  import sqlalchemy.exc
  import sqlalchemy.orm
  from flask import Flask
  from flask_sqlalchemy import SQLAlchemy
  from flask_sqlalchemy.model import DefaultMeta
  from flask_sqlalchemy.model import Model
label_desc: Use image node_id 11 for calling a global function with example usage: test_model_repr(db) without return types