public async Task CreateChargeTest()
 {
     var args = new ChargeCreateArguments();
     _stripe.Post(
         Arg.Is<StripeRequest<ChargeCreateArguments, Charge>>(a => a.UrlPath == "charges" && a.Model == args),
         _cancellationToken).Returns(Task.FromResult(new StripeResponse<Charge>()));
     var response = await _client.CreateCharge(args, _cancellationToken);
     response.Should().NotBeNull();
 }
 public async Task<StripeResponse<Charge>> CreateCharge(ChargeCreateArguments arguments,
     CancellationToken cancellationToken = default(CancellationToken))
 {
     var request = new StripeRequest<ChargeCreateArguments, Charge>
     {
         UrlPath = Paths.Charges,
         Model = arguments
     };
     return await _client.Post(request, cancellationToken);
 }
 public void Init()
 {
     GenFu.GenFu.Configure<ChargeCreateArguments>().Fill(x => x.Amount, () => 100);
     _args = GenFu.GenFu.New<ChargeCreateArguments>();
 }