Reading TFA apparently there is no string type, so nothing in it is a string. It's all binary data, byte array or whatever that means in your language of choice

Reading TFA apparently there is no string type, so nothing in it is a string. It's all binary data, byte array or whatever that means in your language of choice. If an application or a library the application uses converts a string into binary data before and converts it back after, that's none of the format's business.