(fini ..body)
  body: zero or more forms
C

Defines a finalizer method.

When an object is killed, its fini method is invoked, followed by the fini-mixin method for each of its mixins, in order from right to left.

Finalizers are not invoked when an object is garbage collected, or when a Runtime is dropped.

Note that the fini clause does not have a parameter list.

init-mixin
fini-mixin