@Test
 public void postMethodLocalNull() throws Exception {
   try {
     ServiceResponse<Void> response = client.getSubscriptionInMethod().postMethodLocalNull(null);
     fail();
   } catch (IllegalArgumentException ex) {
     Assert.assertTrue(ex.getMessage().contains("Parameter subscriptionId is required"));
   }
 }
 @Test
 public void postSwaggerLocalValid() throws Exception {
   ServiceResponse<Void> response =
       client.getSubscriptionInMethod().postSwaggerLocalValid("1234-5678-9012-3456");
   Assert.assertEquals(200, response.getResponse().code());
 }