/** The DOM node Loading needs to cover. Accepts a DOM object or a string. If it's a string, it will be passed to `document.querySelector` to get the corresponding DOM node */
/** If you do not have a specific DOM node to attach the Loading directive, or if you simply prefer not to use Loading as a directive, you can call this service with some configs to open a Loading instance. */
/** If you do not have a specific DOM node to attach the Loading directive, or if you simply prefer not to use Loading as a directive, you can call this service with some configs to open a Loading instance. */