code: def test_homogeneous_rnn_gpu(dtype):
      check_homogeneous_rnn(True, dtype)
  
imports: import chainer
  import chainer.backends
  from chainer.backends.cuda import cupy
  import chainer.functions
  import chainer.links
  import chainer.testing
  import chainer.testing.attr
  import chainermn
  import numpy
  import pytest
label_desc: Use image node_id 4 for calling a global function with example usage: test_homogeneous_rnn_gpu(dtype) without return types