question: called when a chunk with a generic tag is written . it is usefull to pinpoint the chunk location to generate bookmarks , for example . concode_field_sep PlaceHolder placeHolder concode_field_sep void onSection concode_elem_sep void onParagraph concode_elem_sep void onParagraphEnd concode_elem_sep void onOpenDocument concode_elem_sep void onSectionEnd concode_elem_sep void onEndPage concode_elem_sep void onChapter concode_elem_sep void onCloseDocument concode_elem_sep void onChapterEnd concode_elem_sep void onStartPage
target: void function ( PdfWriter arg0 , Document arg1 , Rectangle arg2 , String arg3 ) { }