code: def setUp(self):
      self.N = 64
      self.C_in = 3
      self.H_in = 16
      self.W_in = 32
      self.in_tensor = torch.randn(
          (self.N, self.C_in, self.H_in, self.W_in)
      ).cuda()
      self.orig_model = DummyNetWrapper().cuda()
      self.fp16_model = FP16Model(self.orig_model)
  
imports: import unittest
  import torch
  import torch.nn
  from apex.fp16_utils import FP16Model
label_desc: Use image node_id 1 for calling the TestFP16Model obj's underlying member method code with example usage: obj.setUp() without return types