anchor.diff:  
     PUBLIC SECTION.
       CLASS-METHODS: serialize IMPORTING is_item TYPE st_item
  -                             RETURNING value(rt_files) TYPE tt_files
  +                             RETURNING VALUE(rt_files) TYPE tt_files
                                RAISING lcx_exception.
   
       CLASS-METHODS: deserialize IMPORTING is_item TYPE st_item
  
positive.code:                       IMPORTING iv_html TYPE string.
  
      CLASS-METHODS: render
                        RETURNING value(rv_html) TYPE string
                        RAISING lcx_exception.
  
      CLASS-METHODS: render_css
                        RETURNING value(rv_html) TYPE string.
  
      CLASS-METHODS: render_repo
                        IMPORTING is_repo TYPE st_repo_sha1
                        RETURNING value(rv_html) TYPE string
                        RAISING lcx_exception.
  
      CLASS-METHODS: render_header
                        RETURNING value(rv_html) TYPE string.
  
      CLASS-METHODS: render_footer
                        RETURNING value(rv_html) TYPE string.
  
      CLASS-METHODS: install
                        IMPORTING iv_url TYPE string
  
negative.code: 
    PUBLIC SECTION.
      CLASS-METHODS: serialize IMPORTING is_item TYPE st_item
                               RETURNING VALUE(rt_files) TYPE tt_files
                               RAISING lcx_exception.
  
      CLASS-METHODS: deserialize IMPORTING is_item TYPE st_item
  