Missing class PyMemcacheCache in core/cache/backends/memcached.pyi

[skrese]

Bug report

What's wrong

In Django 3.2+ source code in core/cache/backends/memcached.py there's:

class PyMemcacheCache(BaseMemcachedCache):
    """An implementation of a cache binding using pymemcache."""
    def __init__(self, server, params):
        import pymemcache.serde
        super().__init__(server, params, library=pymemcache, value_not_found_exception=KeyError)
        self._class = self._lib.HashClient
        self._options = {
            'allow_unicode_keys': True,
            'default_noreply': False,
            'serde': pymemcache.serde.pickle_serde,
            **self._options,
        }

but in stubs in core/cache/backends/memcached.pyi there is no stub for PyMemcacheCache.

How is that should be

I believe the missing part in core/cache/backends/memcached.pyi is:

class PyMemcacheCache(BaseMemcachedCache):
    def __init__(self, server: Union[str, Sequence[str]], params: Dict[str, Any]) -> None: ...

System information

• OS:
• python version: 3.8.13
• django version: 3.2.16
• mypy version: 0.991
• django-stubs version: 1.13.0
• django-stubs-ext version: 0.7.0

[skrese]

Thank you.