code: def test_createblock():
      status = [False]
  
      def f():
          net = mx.gluon.nn.Dense(2)
          net.initialize()
          x = net(mx.np.array([1, 2, 3]))
          x.wait_to_read()
          status[0] = True
  
      thread = threading.Thread(target=f)
      thread.start()
      thread.join()
      assert status[0], "Failed to create a layer within a thread"
  
file_path: mxnet/tests/python/unittest/test_thread_local.py
imports: import threading
  import numpy
  import mxnet
  from mxnet import device, attribute
  from mxnet.device import Device
  from mxnet.attribute import AttrScope
  from mxnet.test_utils import assert_almost_equal, set_default_device
  from mxnet.util import _NumpyArrayScope, set_np_shape
label_desc: Use image node_id 5 for calling a global function with example usage: test_createblock() without return types