Returns true if the cache contains a value for the supplied key, false otherwise.
Returns true if the cache contains a value for the supplied key, false otherwise.
Returns an empty version of this specific cache implementation.
Returns an empty version of this specific cache implementation.
Returns an option containing the value stored for the supplied key or None if the key is not present in the cache.
Returns an option containing the value stored for the supplied key or None if the key is not present in the cache.
Returns an iterator of all key-value pairs inside of this cache.
Returns an iterator of all key-value pairs inside of this cache.
A Mutable cache generated by wrapping an immutable cache.