code: def test_rss(self, test_data, res_data):
      result = root_sum_of_squares(test_data, spatial_dim=1)
      assert_allclose(result, res_data, type_test=False)
  
file_path: MONAI/tests/test_mri_utils.py
imports: from __future__ import annotations
  import unittest
  from parameterized import parameterized
  from monai.apps.reconstruction.mri_utils import root_sum_of_squares
  from tests.utils import TEST_NDARRAYS, assert_allclose
label_desc: Use image node_id 1 for calling the TestMRIUtils obj's underlying member method code with example usage: obj.test_rss(test_data, res_data) without return types