code: def _spm_path():
      return os.path.join(_TESTDATA, "sentencepiece.model")
  
imports: import itertools
  import os
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from trax import data
label_desc: Use image node_id 1 for calling a global function with example usage: _spm_path() and returns: os