setter2 property
The setter associated with this variable.
Returns null if the variable is effectively final and therefore
doesn't have a setter associated with it.
This can happen either because the variable is explicitly defined as
being final or because the variable is induced by an explicit getter
that does not have a corresponding setter. If this variable was
explicitly defined (is not synthetic) then the setter associated with
it will be synthetic.
Implementation
@override
SetterFragment? get setter2 => setter as SetterFragment?;