anchor.diff:            %% options
           , options/4
             %% patch
  +        , patch/4
           , patch/5
             %% put
           , put/4
  
positive.code: options(Pid, Uri, Headers, Options) ->
      request(Pid, options, Uri, Headers, [], Options).
  
  %% @doc Performs a <strong>PATCH</strong> request to <code>Uri</code> using
  %% <code>Headers</code> and <code>Body</code> as the content data.
  -spec patch(connection(), uri(), headers(), body(), options()) -> result().
  
negative.code:         , get/3
          , get/4
            %% post
          , post/4
          , post/5
            %% delete
          , delete/4
  