name: (optional, string) specify the name for the generated cache, defaults to the function name uppercase.
time: (optional, u64) specify a cache TTL in seconds, implies the cache type is a TimedCached or TimedSizedCache.
sync_writes: (optional, bool) specify whether to synchronize the execution of writing of uncached values.
result: (optional, bool) If your function returns a Result, only cache Ok values returned by the function.
option: (optional, bool) If your function returns an Option, only cache Some values returned by the function.
with_cached_flag: (optional, bool) If your function returns a cached::Return or Result<cached::Return, E>,
the cached::Return.was_cached flag will be updated when a cached value is returned.
