code: def inject_backend_tests_batch_renormalization():
      return testing.inject_backend_tests(
          None,
          # CPU tests
          [
              {},
              {"use_ideep": "always"},
          ]
          # GPU tests
          + [
              {"use_cuda": True, "cuda_device": 0},
              {"use_cuda": True, "cuda_device": 1},
          ]
          # ChainerX tests
          + [
              {"use_chainerx": True, "chainerx_device": "native:0"},
              {"use_chainerx": True, "chainerx_device": "cuda:0"},
              {"use_chainerx": True, "chainerx_device": "cuda:1"},
          ],
      )
  
imports: import numpy
  import six
  import chainer
  from chainer.functions.normalization import batch_renormalization
  from chainer import testing
  import chainerx
label_desc: Use image node_id 3 for calling a global function with example usage: inject_backend_tests_batch_renormalization() and returns: testing