code: def login(self, username="test", password="test"):
      return self._client.post(
          "/auth/login",
          data={"username": username, "password": password},
      )
  
file_path: flask/examples/tutorial/tests/conftest.py
imports: import os
  import tempfile
  import pytest
  from flaskr import create_app
  from flaskr.db import get_db
  from flaskr.db import init_db
label_desc: Use image node_id 2 for calling the AuthActions obj's underlying member method code with example usage: obj.login(username, password) and returns: self