class_docstr: Potentially composite object, for testing.
class_docstr_tok: ["Potentially","composite","object",",","for","testing","."]
code: def __init__(self, foo, bar=84):
      self.foo = foo
      self.foo_ = deepcopy(foo)
      self.bar = bar
  
imports: from copy import deepcopy
  import pytest
  from sktime.base import BaseEstimator, BaseObject
  from sktime.utils.validation._dependencies import _check_soft_dependencies
label_desc: Use image node_id 1 to create a new CompositionDummy object from inherited base classes: BaseObject with example: obj = CompositionDummy(foo, bar)