MyCSS_PROPERTY_BREAK_AFTER_AVOID_PAGE

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
enum MyCSS_PROPERTY_BREAK_AFTER_AVOID_PAGE = mycss_property_break_after.MyCSS_PROPERTY_BREAK_AFTER_AVOID_PAGE;

Meta