public async Task CreatePiiTokenTest()
{
// Arrange
var args = new PiiTokenCreateArguments();
_stripe.Post(
Arg.Is <StripeRequest <PiiTokenCreateArguments, Token> >(
a => a.UrlPath == "tokens" && a.Model == args), _cancellationToken)
.Returns(Task.FromResult(new StripeResponse <Token>()));
// Act
var response = await _client.CreatePiiToken(args, _cancellationToken);
// Assert
response.Should().NotBeNull();
}