code: def test_get_field(self):
      self.assertEqual(
          list(self.corpus.get_field("author")), list(self.df.author)
      )
  
file_path: scattertext/scattertext/test/test_ParsedCorpus.py
imports: from unittest import TestCase
  import pandas
  from scattertext import whitespace_nlp, CorpusFromParsedDocuments
  from scattertext.test.test_corpusFromPandas import get_docs_categories
label_desc: Use image node_id 3 for calling the TestParsedCorpus obj's underlying member method code with example usage: obj.test_get_field() without return types