class_docstr: Class that implements LRU cache with expiring items.
  
  LRU caches remove items in a FIFO manner, such that the oldest
  items to be used are the first to be removed.
  If you attempt to retrieve a cache item that is older than the
  expiration time, the item will be invalidated.
class_docstr_tok: ["Class","that","implements","LRU","cache","with","expiring","items",".","LRU","caches","remove","items","in","a","FIFO","manner",",","such","that","the","oldest","items","to","be","used","are","the","first","to","be","removed",".","If","you","attempt","to","retrieve","a","cache","item","that","is","older","than","the","expiration","time",",","the","item","will","be","invalidated","."]
docstr: Returns True if key is found in cache, False otherwise.
  
  Args:
      key (KeyType): Key in cache to retrieve.
docstr_tok: ["Returns","True","if","key","is","found","in","cache",",","False","otherwise",".","Args",":","key","(","KeyType",")",":","Key","in","cache","to","retrieve","."]
code: def __contains__(self, key: KeyType) -> bool:
      """Returns True if key is found in cache, False otherwise.
  
      Args:
          key (KeyType): Key in cache to retrieve.
      """
      return key in self._lru_cache
  
file_path: sagemaker-python-sdk/src/sagemaker/utilities/cache.py
imports: from __future__ import absolute_import
  import datetime
  import collections
  from typing import Tuple, TypeVar, Generic, Callable, Optional
label_desc: Use image node_id 3 for calling the LRUCache obj's underlying member method code with example usage: obj.__contains__(key) and returns: unknown