use Params::Validate qw( validate_pos validate SCALAR ARRAYREF HASHREF );
use Contextual::Return qw();

# later, in a subroutine
# this don't work!
sub funner {
    return
        Contextual::Return::LIST { qw/Larry Curly Moe/ }
        Contextual::Return::ARRAYREF { [ qw/Larry Curly Moe/ ] }
        Contextual::Return::DEFAULT  { croak "listy type contexts only" }
    ; 
}