code: def test_ext_utils_misc(ext_name):
      ext = ext_utils.import_extension_module(ext_name)
      ext.clear_memory_cache()
      if ext.get_device_count() == 0:
          return
      ds = ext.get_devices()
      print(ds)
      ext.device_synchronize(ds[0])
  
imports: import pytest
  from nnabla import ext_utils
label_desc: Use image node_id 3 for calling a global function with example usage: test_ext_utils_misc(ext_name) without return types