anchor.diff:  
     METHOD lif_object~serialize.
   
  -    DATA: lo_xml        TYPE REF TO lcl_xml,
  +    DATA: lo_xml        TYPE REF TO lcl_xml_output,
             ls_tobj       TYPE tobj,
             ls_tobjt      TYPE tobjt,
             ls_tobjvorflg TYPE tobjvorflg,
  
positive.code:   METHOD lif_object~deserialize.
  * see fm RS_PARAMETER_ADD and RS_PARAMETER_EDIT
  
      DATA: lo_xml    TYPE REF TO lcl_xml,
            lv_mode   TYPE c LENGTH 1,
            ls_tpara  TYPE tpara,
            ls_tparat TYPE tparat.
  
negative.code: 
    METHOD lif_object~serialize.
  
      DATA: lo_xml   TYPE REF TO lcl_xml_output,
            ls_tobc  TYPE tobc,
            ls_tobct TYPE tobct.
  
  