private void requestUpdate(UUID uniqueId) {
        if (!this.plugin.getBootstrap().isPlayerOnline(uniqueId)) {
            return;
        }

        // Buffer the request to send a commands update.
        this.sendingBuffers.get(uniqueId).request();
    }
Calls {@link CommandManager#updateCommandTreeForPlayer(ServerPlayer)}
when a players permissions change.
sponge/src/main/java/me/lucko/luckperms/sponge/listeners/SpongeCommandListUpdater.java