code: def unknown_language_name():
      resources = load_resources_json(model_dir=TEST_MODELS_DIR)
      name = "en"
      while name in resources:
          name = name + "z"
      assert name != "en"
      return name
  
imports: import pytest
  import shutil
  import tempfile
  import stanza
  from stanza.tests import *
  from stanza.pipeline import core
  from stanza.resources.common import get_md5, load_resources_json
label_desc: Use image node_id 12 for calling a global function with example usage: unknown_language_name() and returns: name