public async Task HttpRequiredNormalResponseFieldMissing([Values] bool skipClientValidation)
{
var dto = CreateRequiredResponse();
dto.Normal = null;
var api = CreateHttpApi(requiredResponse: dto, skipClientValidation: skipClientValidation);
var result = await api.RequiredAsync(CreateRequiredRequest());
result.Should().BeFailure(ServiceErrors.CreateResponseFieldRequired("normal"));
}