Create customer throws error when using the testmode property in the request

[gijsbertpieterbrouwer]

Code

  var customerRequest = new CustomerRequest()
  {
      Email = email,
      Name = name,
      Locale = Locale.en_US,
      Testmode = IsTest,
      Metadata = metaData,
  };

  ICustomerClient customerClient = new CustomerClient(ApiKey);
  var customerResponse = customerClient.CreateCustomerAsync(customerRequest).Result;

Gives error:
{Mollie.Api.Client.MollieApiException: Unprocessable Entity - Non-existent body parameter "testmode" for this API call. Did you mean: "name"?
at Mollie.Api.Client.BaseMollieClient.ProcessHttpResponseMessage[T](HttpResponseMessage response)
at Mollie.Api.Client.BaseMollieClient.SendHttpRequest[T](HttpMethod httpMethod, String relativeUri, Object data)
at Mollie.Api.Client.BaseMollieClient.PostAsync[T](String relativeUri, Object data)
at Mollie.Api.Client.CustomerClient.CreateCustomerAsync(CustomerRequest request)}

Which in fact is weird considering that the docs of mollie say there is a testmode property in the request:
https://docs.mollie.com/reference/v2/customers-api/create-customer

BUT
in the sample of mollie the request says:
"mode": "test", instead of "testmode":true

[Viincenttt]

Hi @gijsbertpieterbrouwer

The testmode parameter is only for OAuth tokens, not API keys. For API keys, you already have a separation between live and test.

[Viincenttt]

Closing this issue for now, let me know if you need any other help :)