anchor.diff:  
       METHODS show_url
         IMPORTING iv_url TYPE clike.
  +
  +    METHODS render
  +      RAISING lcx_exception.
   
       METHODS view
         IMPORTING iv_html TYPE string.
  
positive.code:     METHODS go_home
        RAISING lcx_exception.
  
      METHODS render
        RAISING lcx_exception.
  
      METHODS back
        RETURNING VALUE(rv_exit) TYPE xfeld
        RAISING   lcx_exception.
  
negative.code:         eo_page  = get_page_by_name( iv_action ).
          ev_state = gc_event_state-new_page.
        WHEN 'abapgithome'.
          cl_gui_frontend_services=>execute( EXPORTING document = gc_abapgit_homepage
                                             EXCEPTIONS OTHERS = 1 ).
          IF sy-subrc <> 0.
            _raise 'Opening page in external browser failed.'.
          ENDIF.
          ev_state = gc_event_state-no_more_act.
        WHEN 'abapgit_installation'.
          abapgit_installation( ).
  