anchor.diff:    jsone:encode( #{ vsn      => ?VSN,
                      session  => Session,
                      msg_type => invoc,
  -                   data     => #{ host_name => Host, 
  +                   data     => #{ host_name => list_to_binary( Host ), 
                                     id        => Id,
                                     status    => ok,
                                     lam_name  => list_to_binary( LamName ),
  
positive.code: 
  to_json( {finished, Sum}, Session ) ->
  
    Host = list_to_binary( inet:gethostname() ),
  
    #{ id     := Id,
       state  := ok,
  
negative.code: 
  to_json( {started, R, LamName}, Session ) ->
  
    {ok, Host} = inet:gethostname(),
  
    jsone:encode( #{ vsn      => ?VSN,
    	                session  => Session,
    	                msg_type => invoc,
    	                data     => #{ host_name => list_to_binary( Host ), id => R, lam_name => list_to_binary( LamName ), status => started } } );
  
  to_json( {failed, Reason, S, MissingLst}, Session )when is_list( MissingLst ) ->
  
    {ok, Host} = inet:gethostname(),
  
  	jsone:encode( #{ vsn      => ?VSN,
  		               session  => Session,
  		               msg_type => invoc,
  		               data     => #{ host_name  => list_to_binary( Host ), 
  		                              id         => S,
  		                              status     => error,
  		                              lam_name   => undef,
  