code: def __init__(self, x: int):
      super().__init__()
      self.x = x
  
file_path: tfx/tfx/dsl/input_resolution/ops/slice_op_test.py
imports: from absl.testing import parameterized
  import tensorflow
  from tfx.dsl.input_resolution.ops import ops
  from tfx.dsl.input_resolution.ops import test_utils
  from tfx.orchestration.portable.input_resolution import exceptions
  from tfx.types import artifact
label_desc: Use image node_id 1 to create a new MyArtifact object from inherited base classes: artifact with example: obj = MyArtifact(x)