Return a named entity extractor parameters for `lang` and of version `version`

  Args:
    lang (string): language code.
    version (string): version of the parameters to be used.

def load_ner_model(lang="en", version="2"):
  """Return a named entity extractor parameters for `lang` and of version `version`

  Args:
    lang (string): language code.
    version (string): version of the parameters to be used.
  """
  src_dir = "ner{}".format(version)
  p = locate_resource(src_dir, lang)
  fh = _open(p)
  try:
    return pickle.load(fh)
  except UnicodeDecodeError:
    fh.seek(0)
    return pickle.load(fh, encoding='latin1')