src/transformers/models/wavlm/modeling_wavlm.py/WavLMFeatureProjection/forward
class WavLMFeatureProjection:    def forward(self, hidden_states):
        # non-projected hidden states are needed for quantization
        norm_hidden_states = self.layer_norm(hidden_states)
        hidden_states = self.projection(norm_hidden_states)
        hidden_states = self.dropout(hidden_states)
        return hidden_states, norm_hidden_states