class_docstr: Col-based storage.
class_docstr_tok: ["Col-based","storage","."]
code: def max_size(self, max_size):
      with self._not_full:
          need_notify = self._max_size > max_size or max_size == 0
          self._max_size = max_size
          if need_notify:
              self._not_full.notify_all()
  
imports: import threading
  import copy
  from enum import Enum, auto
  from typing import List, Tuple, Union, Dict, Optional
  from collections import deque, namedtuple
label_desc: Use image node_id 10 for calling the DataQueue obj's underlying member method code with example usage: obj.max_size(max_size) without return types