code: def __init__(self):
      pipeline.Pipeline.__init__(
          self,
          {"A_data": Type2, "B_data": Type3},
          {"regular_data": Type4, "special_data": Type4},
      )
  
imports: import collections
  from absl.testing import absltest
  from magenta.pipelines import dag_pipeline
  from magenta.pipelines import pipeline
  from magenta.pipelines import statistics
label_desc: Use image node_id 1 to create a new UnitC object from inherited base classes: pipeline with example: obj = UnitC()