code: def forward(self, x: Tensor) -> Tensor:
      x = self.patch_embed(x)
      if self.pos_embed is not None:
          x = x + self.pos_embed
  
      for blk in self.blocks:
          x = blk(x)
  
      x = self.neck(x.permute(0, 3, 1, 2))
  
      return x
  
imports: from __future__ import annotations
  from typing import Optional
  import torch
  import torch.nn.functional
  from torch import nn
  from kornia.contrib.models.common import LayerNorm2d, window_partition, window_unpartition
  from kornia.contrib.models.sam.architecture.common import MLPBlock
  from kornia.core import Module, Tensor, zeros
label_desc: Use image node_id 2 for calling the ImageEncoderViT obj's underlying member method code with example usage: obj.forward(x) and returns: x