anchor.diff:  
   -spec user_create_new(ID :: binary(), Pid::pid()) -> ok | {error, Reason :: atom()}.
   user_create_new(Id,Pid) ->
  -    return_ok_or_error(insert_new(?TTS_USER,[{Id,Pid},{Pid,Id}])).
  +    return_ok_or_error(insert_new(?TTS_USER,{Id,Pid})).
   
   
   -spec user_get_pid(ID :: binary()) -> {ok, Pid :: pid()} | {error, Reason :: atom()}.
  
positive.code: 
  -spec user_delete(ID :: binary()) -> true.
  user_delete(Id) ->
      delete_kv_vk(?TTS_USER,Id).
  
  -spec user_delete_pid(Pid :: pid()) -> true.
  user_delete_pid(Pid) ->
      delete_kv_vk(?TTS_USER,Pid).
  
  -spec user_inspect() -> ok. 
  user_inspect() ->
  
negative.code:          user_create_new/2,
           user_get_pid/1,
           user_delete/1,
           user_inspect/0
          ]).
  
  