MyCSS_PROPERTY_BOX_DECORATION_BREAK_CLONE

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_BOX_DECORATION_BREAK_CLONE = mycss_property_box_decoration_break.MyCSS_PROPERTY_BOX_DECORATION_BREAK_CLONE;

Meta