CPAN::Groonga

_Pair::key   { shift->[0] }
sub List::Util::_Pair::value { shift->[1] }
sub List::Util::_Pair::TO_JSON { [ @{+shift} ] }

=head1 NAME

List::Util - A selection of general-utility list subroutines

=he

y;
       my $value = $pair->value;
       ...
    }

Since version C<1.51> they also have a C<TO_JSON> method to ease
serialisation.

=head2 unpairs

    my @kvlist = unpairs @pairs

I<Since version