code: def testConsecutiveSpans_SingleEntry(self):
      a1 = test_utils.DummyArtifact()
      a1.span = 1
  
      actual = self._consecutive_spans([a1])
      self.assertEqual(actual, [a1])
  
imports: from typing import Sequence
  import tensorflow
  from tfx import types
  from tfx.dsl.input_resolution.ops import ops
  from tfx.dsl.input_resolution.ops import test_utils
  from tfx.types import artifact
label_desc: Use image node_id 4 for calling the ConsecutiveSpansOpTest obj's underlying member method code with example usage: obj.testConsecutiveSpans_SingleEntry() without return types