anchor.diff:  agent_info(TargetName, Item) ->
       snmpm_config:agent_info(TargetName, Item).
   
  -%% Backward compatibillity
  +%% Backward compatibility
   agent_info(Addr, Port, Item) ->
       case target_name(Addr, Port) of
   	{ok, TargetName} ->
  
positive.code: 
  -export([format_reason/1, format_reason/2]).
  
  %% Backward compatibillity exports (API version "2")
  -export([
  	 sync_get/3, sync_get/4, sync_get/5, sync_get/6, 
  	 async_get/3, async_get/4, async_get/5, async_get/6, 
  
negative.code: unregister_agent(UserId, TargetName) when is_list(TargetName) ->
      snmpm_config:unregister_agent(UserId, TargetName);
  
  %% Backward compatibility functions
  unregister_agent(UserId, Addr) ->
      unregister_agent(UserId, Addr, ?DEFAULT_AGENT_PORT).
  
  