class_docstr: A simple cache (dictionary) with limited size which expunges oldest entries
      
code: def __setitem__(self, key, value):
      OrderedDict.__setitem__(self, key, value)
      self._check_size_limit()
  
imports: from collections import OrderedDict
  from functools import lru_cache
label_desc: Use image node_id 2 for calling the DictCache obj's underlying member method code with example usage: obj.__setitem__(key, value) without return types