Braintree.Api.BraintreeFragment.TokenizeAsync C# (CSharp) Метод

        public async Task<PaymentMethodNonce> TokenizeAsync(CardBuilder card)
        {
            var actionListener = new PaymentMethodNonceListener();
            try
            {
                AddListener(actionListener);

                Card.Tokenize(this, card);

                return await actionListener.Task();
            }
            // There is no catch statements here. Exception handling must be done by caller.
            finally
            {
                RemoveListener(actionListener);
            }
        }