How to use the expo-payments-stripe.PaymentsStripe.setOptionsAsync function in expo-payments-stripe

async componentWillMount() {
    await Stripe.setOptionsAsync({
      publishableKey: 'pk_test_M315xbWEvSQjt7B8ZJYzuipC',
      androidPayMode: 'test',
      merchantId: 'merchant.host.exp.exponent',
    });
    const allowed = await Stripe.deviceSupportsApplePayAsync();
    const amexAvailable = await Stripe.canMakeApplePayPaymentsAsync({
      networks: ['american_express'],
    });
    const discoverAvailable = await Stripe.canMakeApplePayPaymentsAsync({
      networks: ['discover'],
    });
    const masterCardAvailable = await Stripe.canMakeApplePayPaymentsAsync({
      networks: ['master_card'],
    });
    const visaAvailable = await Stripe.canMakeApplePayPaymentsAsync({
      networks: ['visa'],

componentWillMount() {
    Stripe.setOptionsAsync({
      publishableKey: 'pk_test_M315xbWEvSQjt7B8ZJYzuipC',
      androidPayMode: 'test',
    });
  }