Locked<T> or LockProtected<T>

[Xenoprimate]

I'd like a type that forces locking over a value (with a potentially user-supplied lock object). The purpose will be to help ensure synchronization can not be accidentally elided for the wrapped variable.

Including forcing locks for compound mutations, by way of a 'using' pattern usage. Or, could even only allow access to the variable if a nominated monitor object is entered at the time. Also I wonder if there's any way to protect against leaked references...