en&gt; words. 0 is used as padding ID.
        ngram_range(int): size of multi-word phrases to consider
                          e.g., 2 will consider both 1-word phrases and 2-word phrases
                               limited by max_features
        val_pct(float): Proportion of training to use for validation.
                        Has no effect if x_val and  y_val is supplied.
        preprocess_mode (str):  Either &#39;standard&#39; (normal tokenization) or one of {&#39;bert&#39;, &#39;distilbert&#3