code: def tmpfile(tmpdir):
      tmpfile = f"jina_test_{next(tempfile._get_candidate_names())}.db"
      return tmpdir / tmpfile
  
file_path: jina/tests/conftest.py
imports: import asyncio
  import os
  import random
  import string
  import tempfile
  import time
  import pytest
  from jina import helper
label_desc: Use image node_id 9 for calling a global function with example usage: tmpfile(tmpdir) and returns: unknown