Put a single value into a Locker
Retrieve the value from the Locker.
Retrieve the value from the Locker. If the reference equality
instance backed by a Unique
value is the same then allows
conversion to that type, otherwise as it does not match
then this will be None
The key to check, if the internal Unique value matches then this Locker can be unlocked as the specifed value
The locked to check against