code: def get_train_test():
      return get_twenty_newsgroups_corpus()
  
imports: from sklearn.feature_extraction.text import TfidfVectorizer
  from small_text import SklearnDataset
  from examplecode.data.corpus_twenty_news import get_twenty_newsgroups_corpus
label_desc: Use image node_id 1 for calling a global function with example usage: get_train_test() and returns: get_twenty_newsgroups_corpus