code: def classify_languages(self):
          
          return BlobsWithLanguageDataFrame(self._engine_dataframe.classifyLanguages(),
                                            self._session, self._implicits)
docs: Returns a new DataFrame with the language data of any blob added to
          its row.
  
          >>> blobs_lang_df = blobs_df.classify_languages
  
          :rtype: BlobsWithLanguageDataFrame