src/transformers/models/xlnet/modeling_tf_xlnet.py/TFXLNetLayer/__init__
class TFXLNetLayer:    def __init__(self, config, **kwargs):
        super().__init__(**kwargs)
        self.rel_attn = TFXLNetRelativeAttention(config, name="rel_attn")
        self.ff = TFXLNetFeedForward(config, name="ff")
        self.dropout = tf.keras.layers.Dropout(config.dropout)