Map < String , Diff > function ( ) { return this . data ; }
get the inner mapping from section name to section diff concode_field_sep List<String> removed concode_elem_sep int build2 concode_elem_sep HashMap<String,Diff> data concode_elem_sep List<String> added concode_elem_sep List<String> modified concode_elem_sep int build1 concode_field_sep List<String> getDiffBySection concode_elem_sep Diff generateDiff