wp admin includes class wp site icon.php Notes - WordPress-Thinstall/wordpress-develop GitHub Wiki

interface AdminSiteIconInterface {
    public function create_attachment_object( $cropped, $parent_attachment_id );
    public function insert_attachment( $object, $file );
    public function additional_sizes( $sizes = array() );
    public function intermediate_image_sizes( $sizes = array() );
    public function delete_attachment_data( $post_id );
    public function get_post_metadata( $value, $post_id, $meta_key, $single );
}