src/transformers/models/audio_spectrogram_transformer/modeling_audio_spectrogram_transformer.py/ASTPatchEmbeddings/forward
class ASTPatchEmbeddings:    def forward(self, input_values: torch.Tensor) -> torch.Tensor:
        input_values = input_values.unsqueeze(1)
        input_values = input_values.transpose(2, 3)
        embeddings = self.projection(input_values).flatten(2).transpose(1, 2)
        return embeddings