src/transformers/models/blip_2/modeling_blip_2.py/Blip2VisionModel/__init__
class Blip2VisionModel:    def __init__(self, config: Blip2VisionConfig):
        super().__init__(config)
        self.config = config
        embed_dim = config.hidden_size

        self.embeddings = Blip2VisionEmbeddings(config)
        self.encoder = Blip2Encoder(config)
        self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps)

        self.post_init()