code: def exists(cls) -> bool:
      return ARGILLA_CREDENTIALS_FILE.exists()
  
file_path: argilla/src/argilla/client/login.py
imports: from pathlib import Path
  from typing import Dict, Optional
  from argilla.client.sdk.commons.errors import HttpResponseError, UnauthorizedApiError
  from argilla.client.singleton import init
  from argilla.pydantic_v1 import AnyHttpUrl, BaseModel
label_desc: Use image node_id 4 for calling the ArgillaCredentials obj's underlying member method code with example usage: obj.exists(cls) and returns: ARGILLA_CREDENTIALS_FILE