anchor.diff:  %% Types
   %% ===================================================================
   
  +-type method() :: get | post | put | delete | head | patch.
  +-type path() :: binary().
  +-type body() :: iolist().
  +
   -type config() ::
       #{
           id => term(),
  
positive.code:         resolve_interval => integer()               % Secs, 0 to avoid
      }.
  
  
  
  %% ===================================================================
  
negative.code: 
  
  %% @doc
  -spec request(pid(), method(), path(), body(), request_opts()) ->
      {ok, Status::100..599, Headers::[{binary(), binary()}], Body::binary()} |
      {error, term()}.
  
  request(Pid, Method, Path, Body, Opts) ->
      case get_pid(Pid) of
          {ok, ConnPid} ->
  