class_docstr: Delegator mixin that delegates all methods to wrapped transformer.
  
  Delegates inner transformer methods to a wrapped estimator.
      Wrapped estimator is value of attribute with name self._delegate_name.
      By default, this is "estimator_", i.e., delegates to self.estimator_
      To override delegation, override _delegate_name attribute in child class.
  
  Delegates the following inner underscore methods:
      _fit, _transform, _inverse_transform, _update
  
  Does NOT delegate get_params, set_params.
      get_params, set_params will hence use one additional nesting level by default.
  
  Does NOT delegate or copy tags, this should be done in a child class if required.
code: def _get_delegate(self):
      return getattr(self, self._delegate_name)
  
file_path: sktime/sktime/transformations/_delegate.py
imports: from sktime.transformations.base import BaseTransformer
label_desc: Use image node_id 1 for calling the _DelegatedTransformer obj's underlying member method code with example usage: obj._get_delegate() and returns: getattr