use Symfony\Config\ArrayExtraKeysConfig;
return static function DArrayExtraKeysConfig
$config) { $config->
foo([ 'extra1' => 'foo_extra1',
]) ->
baz('foo_baz'
) ->
qux('foo_qux'
) ->
set('extra2', 'foo_extra2'
) ->
set('extra3', 'foo_extra3'
);
$config->
bar([ 'extra1' => 'bar1_extra1',
]) ->
corge('bar1_corge'
)