How do I query available groups?

I’ve tried to generate some example code below. Take a look at the tests directory to see a lot more examples.

You should be able to get a list of groups using this:

$gc = BU_Edit_Groups::get_instance();
$groups = $gc->get_groups();

To change complete permissions to a group:

$users = array( 1, 2 );
$posts = array( 3, 4 );
$pages = array( 5, 6 );
$allowedposts = array( 'allowed' => $posts );
$allowedpages = array( 'allowed' => $pages );

$updates = array(
	'name' => 'Test group',
	'description' => 'Test description',
	'users' => $users,
	'perms' => array(
		'post' => $allowedposts,
		'page' => $allowedpages,
		),
	);
$gc = BU_Edit_Groups::get_instance();
$group = $gc->update_group( $group_id, $updates );