code: def test_process_from_file(self):
      for pipe in [MsraNERPipe, PeopleDailyPipe, WeiboNERPipe]:
          print(pipe)
          data_bundle = pipe(
              bigrams=True, trigrams=True
          ).process_from_file()
          print(data_bundle)
          data_bundle = pipe(encoding_type="bioes").process_from_file()
          print(data_bundle)
  
file_path: fastNLP/tests/io/pipe/test_conll.py
imports: import pytest
  import os
  from fastNLP.io import MsraNERPipe, PeopleDailyPipe, WeiboNERPipe, Conll2003Pipe, Conll2003NERPipe, OntoNotesNERPipe
label_desc: Use image node_id 1 for calling the TestConllPipe obj's underlying member method code with example usage: obj.test_process_from_file() without return types