code: def shift_1d(x):
      x = F.pad(x, convert_pad_shape([[0, 0], [0, 0], [1, 0]]))[
          :, :, :-1
      ]
      return x
  
imports: import math
  import numpy
  import torch
  from torch import nn
  from torch.nn import functional
label_desc: Use image node_id 16 for calling a global function with example usage: shift_1d(x) and returns: x