code: def g_rng(request):
      nn.clear_parameters()
      yield np.random.RandomState(1223)
      nn.clear_parameters()
  
imports: import pytest
  import numpy
  import nnabla
  import nnabla.functions
  import nnabla.parametric_functions
  import nnabla.initializer
  from nnabla.testing import assert_allclose
  from nbla_test_utils import list_context
label_desc: Use image node_id 1 for calling a global function with example usage: g_rng(request) without return types