code: def test_group_normalization(
      inspec_and_axis, num_groups, nnabla_opts
  ):
      inspec, axis = inspec_and_axis
      fb = FunctionBenchmark(
          PF.group_normalization,
          inspec,
          [num_groups],
          dict(channel_axis=axis),
          nnabla_opts.ext,
          nnabla_opts.ext_kwargs,
      )
      fb.benchmark()
      fb.write(writer=nnabla_opts.function_benchmark_writer)
  
file_path: nnabla/python/benchmark/function/test_normalization_functions.py
imports: import pytest
  import nnabla
  import nnabla.parametric_functions
  from nnabla.ext_utils import get_extension_context
  from function_benchmark import FunctionBenchmark, Inspec
label_desc: Use image node_id 5 for calling a global function with example usage: test_group_normalization(inspec_and_axis, num_groups, nnabla_opts) without return types