code: def nlp_pipeline():
      nlp = stanza.Pipeline(dir=TEST_MODELS_DIR, lang="en")
      return nlp
  
file_path: stanza/stanza/tests/common/test_data_objects.py
imports: import pytest
  import stanza
  from stanza.models.common.doc import Document, Sentence, Word
  from stanza.tests import *
label_desc: Use image node_id 1 for calling a global function with example usage: nlp_pipeline() and returns: nlp