code: def topk(self, x, k=100):
      return x.abs().flatten().topk(k)[0][-1]
  
imports: import random
  import time
  from collections import OrderedDict
  import numpy
  import torch
label_desc: Use image node_id 12 for calling the TestDecorator obj's underlying member method code with example usage: obj.topk(x, k) and returns: x