code: def datadir(datadir):
      return os.path.join(datadir, "subword_tokenizer_data")
  
file_path: cudf/python/cudf/cudf/tests/text/test_subword_tokenizer.py
imports: import os
  import cupy
  import numpy
  import pytest
  import cudf
  from cudf.core.subword_tokenizer import SubwordTokenizer
  from cudf.testing._utils import assert_eq
label_desc: Use image node_id 1 for calling a global function with example usage: datadir(datadir) and returns: os