anchor.diff:  
   %% Command: "compact ${NODE_NAME}"
   %%
  -handle_call(_Socket, <<?COMPACT, Option/binary>> = Command, #state{formatter = Formatter} = State) ->
  +handle_call(_Socket, <<?COMPACT, ?SPACE, Option/binary>> = Command, #state{formatter = Formatter} = State) ->
       Reply = case compact(Command, Option) of
                   ok ->
                       Formatter:ok();
  
positive.code: 
  %% Command: "s3-del-endpoint ${END_POINT}"
  %%
  handle_call(_Socket, <<?S3_DEL_ENDPOINT, Option/binary>> = Command, #state{formatter = Formatter} = State) ->
      Reply = case s3_del_endpoint(Command, Option) of
                  ok ->
                      Formatter:ok();
  
negative.code: 
  %% Command : "detach ${NODE_NAME}"
  %%
  handle_call(_Socket, <<?DETACH_SERVER, ?SPACE, Option/binary>> = Command, #state{formatter = Formatter} = State) ->
      Reply = case detach(Command, Option) of
                  ok ->
                      Formatter:ok();
  