(possibly moving it there if the node is already enqueued). The answer will be
sent B<after> the node has been dequeued.
+=item B<FLUSHALL>
+
+Causes the daemon to start flushing ALL pending values to disk. This
+returns immediately, even though the writes may take a long time.
+
=item B<HELP> [I<command>]
Returns a short usage message. If no command is given, or I<command> is