code: public Observable<VnetValidationFailureDetailsInner> verifyHostingEnvironmentVnetAsync(VnetParameters parameters) {
          return verifyHostingEnvironmentVnetWithServiceResponseAsync(parameters).map(new Func1<ServiceResponse<VnetValidationFailureDetailsInner>, VnetValidationFailureDetailsInner>() {
              @Override
              public VnetValidationFailureDetailsInner call(ServiceResponse<VnetValidationFailureDetailsInner> response) {
                  return response.body();
              }
          });
      }
docs: Verifies if this VNET is compatible with an App Service Environment by analyzing the Network Security Group rules.
  Verifies if this VNET is compatible with an App Service Environment by analyzing the Network Security Group rules.
  
  @param parameters VNET information
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the VnetValidationFailureDetailsInner object