anchor.diff:  %%--------------------------------------------------------------------
   -spec put(URL :: url()) -> Response :: response().
   put(URL) ->
  -    request(put, URL, [], <<>>, []).
  +    request(put, URL, #{}, <<>>, []).
   
   
   %%--------------------------------------------------------------------
  
positive.code: 
  %%--------------------------------------------------------------------
  %% @doc
  %% Performs a HTTP DELETE request.
  %% @end
  %%--------------------------------------------------------------------
  -spec delete(URL :: url()) -> Response :: response().
  delete(URL) ->
      request(delete, URL, [], <<>>, []).
  
  
  %%--------------------------------------------------------------------
  
negative.code: %%--------------------------------------------------------------------
  -spec request(URL :: url()) -> Response :: response().
  request(URL) ->
      request(get, URL, #{}, <<>>, []).
  
  
  %%--------------------------------------------------------------------
  