anchor.diff:        Source :: netconf_db(),
         Filter :: simple_xml() | xpath(),
         Timeout :: timeout(),
  -      Result :: {ok,simple_xml()} | {error,error_reason()}.
  +      Result :: {ok,[simple_xml()]} | {error,error_reason()}.
   %% @doc Get configuration data.
   %%
   %% To be able to access another source than `running', the server
  
positive.code:       Client :: client(),
        Action :: simple_xml(),
        Timeout :: timeout(),
        Result :: {ok,simple_xml()} | {error,error_reason()}.
  %% @doc Execute an action.
  %%
  %% @end
  
negative.code:       Client :: client(),
        Filter :: simple_xml() | xpath(),
        Timeout :: timeout(),
        Result :: {ok,[simple_xml()]} | {error,error_reason()}.
  %% @doc Get data.
  %%
  %% This operation returns both configuration and state data from the
  