code: def transform(self, input_object):
      s = input_object["B_data"].s
      t = input_object["B_data"].t
      z = input_object["A_data"].z
      regular = Type4(s=s, t=t, z=0)
      special = Type4(s=s + z * 100, t=t - z * 100, z=z)
      return {"regular_data": [regular], "special_data": [special]}
  
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 2 for calling the UnitC obj's underlying member method code with example usage: obj.transform(input_object) and returns: dict