class_docstr: An ensemble is a model which is composed of a list of models.
  
  Parameters
  ----------
  models
class_docstr_tok: ["An","ensemble","is","a","model","which","is","composed","of","a","list","of","models",".","Parameters","--","--","--","--","--","models"]
code: def _min_number_of_models(self):
      return 2
  
file_path: river/river/base/ensemble.py
imports: from __future__ import annotations
  from collections import UserList
  from collections.abc import Iterator
  from random import Random
  from .estimator import Estimator
  from .wrapper import Wrapper
label_desc: Use image node_id 2 for calling the Ensemble obj's underlying member method code with example usage: obj._min_number_of_models() and returns: int