code: def __init__(self, uuid_string: str):
      self.uuid = uuid_string
  
file_path: fastapi/tests/test_inherited_custom_class.py
imports: import uuid
  import pytest
  from fastapi import FastAPI
  from fastapi.testclient import TestClient
  from pydantic import BaseModel
  from .utils import needs_pydanticv1, needs_pydanticv2
label_desc: Use image node_id 1 to create a new MyUuid object  with example: obj = MyUuid(uuid_string)