anchor.diff:  %% copies of the Software, and to permit persons to whom the
   %% Software is furnished to do so, subject to the following
   %% conditions:
  -%% 
  +%%
   %% The above copyright notice and this permission notice shall be
   %% included in all copies or substantial portions of the Software.
  -%% 
  +%%
   %% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   %% EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
   %% OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  
positive.code: -behaviour(gen_server).
  
  %% gen_server callbacks
  -export([start_link/0, init/1, handle_call/3, handle_cast/2, 
           handle_info/2, terminate/2, code_change/3]).
  
  -export([healthcheck/0, incr/1, incr/2, cached/0]).
  
negative.code: %% The return value is ignored.
  %% @hidden
  %%--------------------------------------------------------------------
  terminate(_Reason, _State) ->
      ok.
  
  %%--------------------------------------------------------------------
  