src/transformers/models/vit_msn/modeling_vit_msn.py/ViTMSNEncoder/__init__
class ViTMSNEncoder:    def __init__(self, config: ViTMSNConfig) -> None:
        super().__init__()
        self.config = config
        self.layer = nn.ModuleList([ViTMSNLayer(config) for _ in range(config.num_hidden_layers)])
        self.gradient_checkpointing = False