Gck.Object.prototype.get_template_async

function get_template_async(attr_type: Number(gulong), cancellable: Gio.Cancellable, callback: Gio.AsyncReadyCallback): void {
    // Gjs wrapper for gck_object_get_template_async()
}

Get an attribute template from the object. The attr_type must be for an attribute which returns a template.

This call will return immediately and complete asynchronously.

attr_type: The template attribute type.
cancellable: Optional cancellation object, or NULL.
callback: Called when the operation completes.