class_docstr: metrics utils unittest
class_docstr_tok: ["metrics","utils","unittest"]
code: def setUp(self):
      super().setUp()
      package_root = Path(PACKAGE_ROOT_DIR)
      self.config_file = package_root.joinpath(
          "../egs/mock_text_seq_label_data/seq-label/v1/config/seq-label-mock.yml"
      )
  
file_path: delta/delta/utils/postprocess/postprocess_utils_test.py
imports: import os
  from pathlib import Path
  import delta.compat
  from delta import utils
  from delta.utils.postprocess.postprocess_utils import ids_to_sentences
  from delta import PACKAGE_ROOT_DIR
label_desc: Use image node_id 1 for calling the PostprocessUtilsTest obj's underlying member method code with example usage: obj.setUp() without return types