අතරමැදිසක්රීය කිරීම් සඳහා හැඹිලිය

15from typing import Any

18class Cache:

26    def __init__(self):
27        self._cache = {}

29    def clear_all(self):

33        self._cache = {}

35    def push(self, name: str, value: Any):

44        if name not in self._cache:
45            self._cache[name] = []

48        self._cache[name].append(value)

50    def q_size(self, name):

58        if name not in self._cache:
59            return None
60
61        if type(self._cache[name]) != list:
62            return None
63
64        return len(self._cache[name])

66    def pop(self, name: str):

73        return self._cache[name].pop(0)

75    def set(self, key: str, value: Any):

82        self._cache[key] = value

84    def get(self, key: str, default: Any = None):

92        return self._cache.get(key, default)

94    def clear(self, key: str):

100        del self._cache[key]

104_INSTANCE = None

107def get_cache() -> Cache:

113    global _INSTANCE
114
115    if _INSTANCE is None:
116        _INSTANCE = Cache()
117
118    return _INSTANCE