anchor.diff:       Callback
       ].
   
  -summary_command_spec() ->
  -    [["riak-admin", "handoff", "summary"], %% Cmd
  -     [],                                   %% KeySpecs
  -     [],                                   %% Flags
  -     fun riak_core_handoff_status:handoff_summary/2
  -    ].
  -
  -details_command_spec() ->
  -    [["riak-admin", "handoff", "details"],                %% Cmd
  -     [],                                                  %% KeySpecs
  -     [
  -      {node, [{shortname, "n"}, {longname, "node"},       %% Flags
  -              {typecast, fun clique_typecast:to_node/1}]},
  -      {all, [{shortname, "a"}, {longname, "all"}]}
  -     ],
  -     fun riak_core_handoff_status:handoff_details/2
  -    ].
  -
  -
   summary_usage() ->
       [
        "riak-admin handoff summary\n\n",
  
positive.code:     clique:register_usage(["riak-admin", "handoff", "enable"], handoff_enable_disable_usage()),
      clique:register_usage(["riak-admin", "handoff", "disable"], handoff_enable_disable_usage()),
      clique:register_usage(["riak-admin", "handoff", "summary"], summary_usage()),
      clique:register_usage(["riak-admin", "handoff", "details"], details_usage()).
  
  handoff_usage() ->
      [
  
negative.code: 
  register_cli_cmds() ->
      register_enable_disable_commands(),
      clique:register_command(["riak-admin", "handoff", "summary"], [], [],
                               fun riak_core_handoff_status:handoff_summary/2),
      clique:register_command(["riak-admin", "handoff", "details"], [],
                               node_and_all_flags(), fun riak_core_handoff_status:handoff_details/2),
      clique:register_command(["riak-admin", "handoff", "config"], [],
                                node_and_all_flags(), fun handoff_config/2).
  
  node_and_all_flags() ->
      [{node, [{shortname, "n"}, {longname, "node"},
               {typecast, fun clique_typecast:to_node/1}]},
       {all, [{shortname, "a"}, {longname, "all"}]}].
  
  register_enable_disable_commands() ->
      CmdList = [handoff_cmd_spec(EnOrDis, Dir) ||
                    EnOrDis <- [enable, disable],
  