MyCSS_PROPERTY_BREAK_INSIDE_AVOID_REGION

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_INSIDE_AVOID_REGION = mycss_property_break_inside.MyCSS_PROPERTY_BREAK_INSIDE_AVOID_REGION;

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