src/transformers/models/audio_spectrogram_transformer/modeling_audio_spectrogram_transformer.py/ASTPatchEmbeddings/__init__
class ASTPatchEmbeddings:    def __init__(self, config):
        super().__init__()

        patch_size = config.patch_size
        frequency_stride = config.frequency_stride
        time_stride = config.time_stride

        self.projection = nn.Conv2d(
            1, config.hidden_size, kernel_size=(patch_size, patch_size), stride=(frequency_stride, time_stride)
        )