code: def test_group_norm(
      *,
      data,
      test_flags,
      backend_fw,
      fn_name,
      on_device,
  ):
      x_dtype, x, num_groups, data_format, scale, offset, eps = data
      helpers.test_function(
          backend_to_test=backend_fw,
          test_flags=test_flags,
          fn_name=fn_name,
          on_device=on_device,
          xs_grad_idxs=[[0, 0]],
          rtol_=1e-1,
          atol_=1e-1,
          input_dtypes=x_dtype,
          x=x,
          num_groups=num_groups,
          scale=scale,
          offset=offset,
          eps=eps,
          data_format=data_format,
      )
  
file_path: ivy/ivy_tests/test_ivy/test_functional/test_experimental/test_nn/test_norms.py
imports: from hypothesis import strategies
  import ivy_tests.test_ivy.helpers
  from ivy_tests.test_ivy.helpers import handle_test
  import ivy
label_desc: Use image node_id 4 for calling a global function with example usage: test_group_norm() without return types