static parse(services) {
        const accountSASServices = new AccountSASServices();
        for (const c of services) {
            switch (c) {
                case "b":
                    accountSASServices.blob = true;
                    break;
                case "f":
                    accountSASServices.file = true;
                    break;
                case "q":
                    accountSASServices.queue = true;
                    break;
                case "t":
                    accountSASServices.table = true;
                    break;
                default:
                    throw new RangeError(`Invalid service character: ${c}`);
            }
        }
        return accountSASServices;
    }
Creates an {@link AccountSASServices} from the specified services string. This method will throw an
Error if it encounters a character that does not correspond to a valid service.

@param services -