code: def _patch_merging_pad(x):
      H, W, _ = x.shape[-3:]
      x = F.pad(x, (0, 0, 0, W % 2, 0, H % 2))
      return x
  
imports: from typing import List, Optional
  import torch
  from torch import Tensor, nn
  from torch.nn import functional
  from cvnets.layers import Dropout, LinearLayer, StochasticDepth, get_normalization_layer
  from cvnets.layers.activation import build_activation_layer
  from cvnets.modules import BaseModule
label_desc: Use image node_id 1 for calling a global function with example usage: _patch_merging_pad(x) and returns: x