Question: youtube player config limitation for disabling closed captions. #2028

In typescript, cc_load_policy can only be set to 1, but I believe 3 is also a valid option. Is there a reason for it not being cc_load_policy?: 1 | 3;
Config.youtube?: { cc_lang_pref?: string; cc_load_policy?: 1; color?: "red" | "white"; disablekb?: 0 | 1; enablejsapi?: 0 | 1; end?: number; fs?: 0 | 1; hl?: string; iv_load_policy?: 1 | 3; origin?: string; playlist?: string; rel?: 0 | 1; start?: number; widget_referrer?: string; referrerpolicy?: string;