class_docstr: Wrap a user-provided reduction function in a MetricReducer API.  It is not as efficient as the
  full MetricReducer API but simpler for users.
class_docstr_tok: ["Wrap","a","user-provided","reduction","function","in","a","MetricReducer","API",".","It","is","not","as","efficient","as","the","full","MetricReducer","API","but","simpler","for","users","."]
code: def reset(self) -> None:
      self.values = []
  
imports: import abc
  import enum
  import itertools
  from typing import Any, Callable, Dict, List, Optional, TypeVar, Union, overload
  import numpy
label_desc: Use image node_id 2 for calling the _SimpleReducer obj's underlying member method code with example usage: obj.reset() without return types