$foo->{bar}{baz} = 4;

##</code><code>##

${ $foo->{bar} }{baz} = 4;

##</code><code>##

$foo->{bar}{baz}->@[1, 2, 3] = (100, 200, 500);

##</code><code>##

@{ $foo->{bar}{baz} }[1, 2, 3] = (100, 200, 500);

##</code><code>##

$foo->{bar}{baz}->$* = 4;

##</code><code>##

${ $foo->{bar}{baz} } = 4;