docs: public void createToken(
              @NonNull final Card card,
              @NonNull @Size(min = 1) final String publishableKey,
              @Nullable final Executor executor,
              @NonNull final TokenCallback callback) {
          if (card == null) {
              throw new RuntimeException(
                      "Required Parameter: 'card' is required to create a token");
          }
  
          createTokenFromParams(
                  mStripeNetworkUtils.hashMapFromCard(card),
                  publishableKey,
                  Token.TYPE_CARD,
                  executor,
                  callback);
      }