of {&#39;bert&#39;, &#39;distilbert&#39;}
                                tokenization and preprocessing for use with
                                BERT/DistilBert text classification model.
        encoding (str):        character encoding to use. Auto-detected if None
        lang (str):            language.  Auto-detected if None.
        sep(str):              delimiter for CSV (comma is default)
        is_regression(bool):  If True, integer targets will be treated as numerical targets instead of cla