code: def to_2D(self, x):
      n, hw, c = x.shape
      h = self.img_h // self.patch_dim
      w = self.img_w // self.patch_dim
      assert hw == h * w
      x = x.transpose(1, 2).reshape(n, c, h, w)
      return x
  
imports: import math
  import einops
  import torch
  import apex
  import torch.nn.functional
  from megatron import get_args
  from megatron.model import LayerNorm
  from megatron.model.module import MegatronModule
  from megatron.model.vision.utils import resize
label_desc: Use image node_id 2 for calling the SetrSegmentationHead obj's underlying member method code with example usage: obj.to_2D(x) and returns: x