@classmethod<EOL><INDENT>def cached(cls, timeout=<NUM_LIT>, cache_none=False):<DEDENT>
return CachedModel(cls=cls, timeout=timeout, cache_none=cache_none)<EOL>
Cache queries

        :param timeout: cache timeout
        :param cache_none: cache None result

        Usage::

        >>> Model.cached(60).query({...})