code: def test_overlapping_and_adjacent_ranges_are_merged(
      self, regions, expected
  ):
      self.assertCountEqual(
          ranges.RangeSet.from_regions(expected),
          ranges.RangeSet.from_regions(regions),
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import itertools
  from absl.testing import absltest
  from absl.testing import parameterized
  import mock
  from third_party.nucleus.protos import position_pb2
  from third_party.nucleus.protos import reference_pb2
  from third_party.nucleus.protos import variants_pb2
  from third_party.nucleus.testing import test_utils
  from third_party.nucleus.util import ranges
label_desc: Use image node_id 6 for calling the RangesTests obj's underlying member method code with example usage: obj.test_overlapping_and_adjacent_ranges_are_merged(regions, expected) without return types