src/transformers/models/big_bird/modeling_big_bird.py/BigBirdForQuestionAnsweringHead/forward
class BigBirdForQuestionAnsweringHead:    def forward(self, encoder_output):
        hidden_states = self.dropout(encoder_output)
        hidden_states = self.intermediate(hidden_states)
        hidden_states = self.output(hidden_states, encoder_output)
        hidden_states = self.qa_outputs(hidden_states)
        return hidden_states