src/transformers/models/clip/modeling_clip.py/CLIPVisionTransformer/__init__
class CLIPVisionTransformer:    def __init__(self, config: CLIPVisionConfig):
        super().__init__()
        self.config = config
        embed_dim = config.hidden_size

        self.embeddings = CLIPVisionEmbeddings(config)
        self.pre_layrnorm = nn.LayerNorm(embed_dim)
        self.encoder = CLIPEncoder(config)
        self.post_layernorm = nn.LayerNorm(embed_dim)