class_docstr: This class is just here for house-keeping.
class_docstr_tok: ["This","class","is","just","here","for","house-keeping","."]
code: def _wrapped_model(self):
      return self.river_estimator
  
imports: from __future__ import annotations
  import copy
  import typing
  import numpy
  from sklearn import base
  from sklearn import pipeline, preprocessing, utils
  from river import base, compose, stream
label_desc: Use image node_id 1 for calling the River2SKLBase obj's underlying member method code with example usage: obj._wrapped_model() and returns: self