code: def test_single_name(db: SQLAlchemy) -> None:
      """Single table inheritance should not set a new name."""
  
      class Duck(db.Model):
          id = sa.Column(sa.Integer, primary_key=True)
  
      class Mallard(Duck):
          pass
  
      assert "__tablename__" not in Mallard.__dict__
      assert Mallard.__tablename__ == "duck"
  
imports: from __future__ import annotations
  import inspect
  import typing
  import pytest
  import sqlalchemy
  import sqlalchemy.exc
  import sqlalchemy.orm
  from flask_sqlalchemy import SQLAlchemy
  from flask_sqlalchemy.model import camel_to_snake_case
label_desc: Use image node_id 3 for calling a global function with example usage: test_single_name(db) without return types