class_docstr: Keep only the min/max of streaming values
class_docstr_tok: ["Keep","only","the","min\/max","of","streaming","values"]
code: def __iter__(self):
      yield self.min
      yield self.max
  
imports: from collections import defaultdict, namedtuple
  import warnings
  import numpy
  from numpy.linalg import norm
  import pandas
  from lifelines.exceptions import ConvergenceWarning
  from typing import *
label_desc: Use image node_id 3 for calling the min_max obj's underlying member method code with example usage: obj.__iter__() without return types