In Failure§
See primary documentation in context for method handled.
method handled(Failure:D: --> Bool:D) is rw
Returns True for handled failures, False otherwise.
sub f() { fail }; my $v = f; say $v.handled; # OUTPUT: «False»
The handled method is an lvalue, see routine trait is rw, which means you can also use it to set the handled state:
sub f() { fail } my $v = f; $v.handled = True; say $v.handled; # OUTPUT: «True»