34;
        )

    # check CRF
    if not DISABLE_V2_BEHAVIOR and name in V1_ONLY_MODELS:
        warnings.warn(
            &#34;Falling back to BiLSTM (no CRF) because DISABLE_V2_BEHAVIOR=False&#34;
        )
        msg = (
            &#34;\nIMPORTANT NOTE: ktrain uses the CRF module from keras_contrib, which is not yet\n&#34;
            + &#34;fully compatible with TensorFlow 2. You can still use the BiLSTM-CRF model\n&#34;
            + &#34;in ktrain for sequence tagging with TensorFlow 2, but you m