my @attribute_names = ('attr1', 'attr2', 'attr3');
foreach my $attribute (@attribute_names) {
    my $value = $self->get($attribute);
    print "$attribute => $value\n";
}

##</code><code>##

my @attribute_names = ('attr1', 'attr2', 'attr3');
foreach my $attribute (@attribute_names) {
    my $function_name = "get_$attribute";
    my $value = $self->$function_name;
    print "$attribute => $value\n";
}

##</code><code>##

my @attr_names = ('attr1', 'attr2', 'attr3');
my @values = $self->get(@attr_names);
print "$attr_names[$_] => $values[$_]\n" for (0 .. $#attr_names);

##</code><code>##

FooClass->define_attributes(
    foo => { Type => 'MULTIPLE(x)', Default => 0 },
);