HB_MATH_GLYPH_PART_FLAG_EXTENDER

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
version(HB_with_deprecated)
extern (C) @nogc nothrow
enum HB_MATH_GLYPH_PART_FLAG_EXTENDER = HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER;

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