src/transformers/models/tapas/modeling_tapas.py/TapasPredictionHeadTransform/forward
class TapasPredictionHeadTransform:    def forward(self, hidden_states):
        hidden_states = self.dense(hidden_states)
        hidden_states = self.transform_act_fn(hidden_states)
        hidden_states = self.LayerNorm(hidden_states)
        return hidden_states