bi_gru                  Bidirectional GRU with embedding layer
bi_lstm                 Bidirectional LSTM with embedding layer
fit_model               Deep learning model fitting
metric_pearson_correlation
                        Pearson correlation coefficient
plot_model              visualization of the model architecture
predict_model           Model prediction
sampling_generator      Generator function
text_token              Tokenizing text
token_vector            Vectorization of tokens
