src/transformers/models/lxmert/modeling_tf_lxmert.py/TFLxmertPooler/__init__
class TFLxmertPooler:    def __init__(self, config, **kwargs):
        super().__init__(**kwargs)
        self.dense = tf.keras.layers.Dense(
            config.hidden_size,
            kernel_initializer=get_initializer(config.initializer_range),
            activation="tanh",
            name="dense",
        )