hb_ot_layout_has_substitution

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
  1. hb_bool_t hb_ot_layout_has_substitution(hb_face_t* face)
  2. fp_hb_ot_layout_has_substitution hb_ot_layout_has_substitution;
    version(!BindHB_Static)
    extern (C) @nogc nothrow __gshared
    fp_hb_ot_layout_has_substitution hb_ot_layout_has_substitution;

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