code: def __init__(self, config):
      check_vit_in_transformers()
      super().__init__(config)
      self.config = config
  
      self.embeddings = vit.ViTEmbeddings(config)
      self.encoder = ViTEncoder(config)
  
      self.layernorm = nn.LayerNorm(
          config.hidden_size, eps=config.layer_norm_eps
      )
      add_pooling_layer = getattr(config, "add_pooling_layer", True)
      self.pooler = vit.ViTPooler(config) if add_pooling_layer else None
  
      self.init_weights()
  
imports: from collections import namedtuple
  from dataclasses import asdict, dataclass
  import torch
  from mmf.utils.general import retry_n
  from omegaconf import OmegaConf
  from packaging import version
  from torch import nn
label_desc: Use image node_id 1 to create a new ViTModel object from inherited base classes: vit with example: obj = ViTModel(config)