hb_map_set_user_data

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_map_set_user_data(hb_map_t* map, hb_user_data_key_t* key, void* data, hb_destroy_func_t destroy, hb_bool_t replace)
    version(BindHB_Static)
    extern (C) @nogc nothrow
    static if(hbSupport >= 10707)
    hb_map_set_user_data
  2. fp_hb_map_set_user_data hb_map_set_user_data;

Meta