code: def test_gru_cell_is_half(self):
      cell = nn.GRUCell(self.h, self.h)
      self.run_cell_test(cell)
  
imports: import unittest
  from apex import amp
  import random
  import torch
  from torch import nn
  from utils import common_init, HALF
label_desc: Use image node_id 5 for calling the TestRnnCells obj's underlying member method code with example usage: obj.test_gru_cell_is_half() without return types