code: def run_flattened(fn, tags):
      return fn([x for x in y for y in tags])
  
file_path: stanza/stanza/tests/ner/test_ner_utils.py
imports: import pytest
  from stanza.tests import *
  from stanza.models.common.vocab import EMPTY
  from stanza.models.ner import utils
label_desc: Use image node_id 10 for calling a global function with example usage: run_flattened(fn, tags) and returns: fn