code: def test_invalid_data_format(self, data_format):
      with self.assertRaisesRegex(
          ValueError,
          f"Unable to extract channel information from '{data_format}'.",
      ):
          group_norm.GroupNorm(
              groups=5,
              data_format=data_format,
              create_scale=False,
              create_offset=False,
          )
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import group_norm
  from haiku._src import initializers
  from haiku._src import test_utils
  import jax.numpy
  import numpy
label_desc: Use image node_id 8 for calling the GroupNormTest obj's underlying member method code with example usage: obj.test_invalid_data_format(data_format) without return types