Determine whether the value of this FatLazy has been determined.
Test whether the value of this class has been set or initialized from the default.
Get the value of the instance.
the value of the instance
Reset the value of this FatLazy to the default (which will be lazily determined on retrieval.
Set the instance to a new value and return that value
- the new value of the instance
Copy the value of the specified FatLazy into this FatLazy
and the lazy() = foo style of assignment