src/transformers/models/cvt/modeling_cvt.py/CvtSelfAttentionProjection/__init__
class CvtSelfAttentionProjection:    def __init__(self, embed_dim, kernel_size, padding, stride, projection_method="dw_bn"):
        super().__init__()
        if projection_method == "dw_bn":
            self.convolution_projection = CvtSelfAttentionConvProjection(embed_dim, kernel_size, padding, stride)
        self.linear_projection = CvtSelfAttentionLinearProjection()