func (a And) isEmpty() bool {
	return len(a.Tags) == 0 && !a.Prefix.set &&
		a.ObjectSizeGreaterThan == 0 && a.ObjectSizeLessThan == 0
}

// Validate - validates the And field
func (a And) Validate() error {
	// > This is used in a Lifecycle Rule Filter to apply a logical AND to two or more predicates.
	// ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_LifecycleRuleAndOperator.html
	// i.e, predCount >= 2

  virtual absl::Status InputLength(const char* input_name, int* length) = 0;
  virtual absl::Status OutputLength(const char* output_name, int* length) = 0;

  // Set stack trace to be used for potential async error reporting.
  virtual void SetStackTrace(ManagedStackTrace stack_trace) = 0;

  virtual const tensorflow::AbstractOpAttrs* GetOpAttrs() const = 0;
  virtual void AddAttrs(const AbstractOpAttrs* op_attrs) = 0;

    client = TestClient(app, raise_server_exceptions=False)
    response = client.get("/items/portal-gun")
    assert response.status_code == 500, response.text

    replaceWith = ReplaceWith(expression = "keyManager"),
    level = DeprecationLevel.ERROR,
  )
  fun keyManager(): X509KeyManager = keyManager

  @JvmName("-deprecated_trustManager")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "trustManager"),
    level = DeprecationLevel.ERROR,
  )
  fun trustManager(): X509TrustManager = trustManager

* Add documentation to the User Manual and DSL Reference (under [platforms/documentation/docs/src/docs](platforms/documentation/docs/src/docs/)).
* For error messages related changes, follow the [ErrorMessages Guide](contributing/ErrorMessages.md).
* For Javadocs, follow the [Javadoc Style Guide](contributing/JavadocStyleGuide.md).

    client = TestClient(app, raise_server_exceptions=False)
    response = client.get("/items/portal-gun")
    assert response.status_code == 500, response.text

  }

  @Test
  fun testFailsIfTrailersNotSet() {
    val response =
      newResponse("".toResponseBody()) {
        // All live paths (Http1, Http2) in OkHttp do this
        trailers { error("trailers not available") }
      }

    assertFailsWith<IllegalStateException>(message = "trailers not available") {
      response.trailers()
    }
  }

  @Test
  fun worksIfTrailersSet() {

		kmsRouter.Methods(http.MethodGet).Path(version + "/key/status").HandlerFunc(gz(httpTraceAll(kmsAPI.KMSKeyStatusHandler)))
	}

	// If none of the routes match add default error handler routes
	kmsRouter.NotFoundHandler = httpTraceAll(errorResponseHandler)
	kmsRouter.MethodNotAllowedHandler = httpTraceAll(methodNotAllowedHandler("KMS"))

		},
		ConnectStart: func(network, addr string) {
			atomic.StoreInt64(&dialStart, time.Now().UnixNano())
		},
		ConnectDone: func(network, addr string, err error) {
			if err == nil {
				atomic.StoreInt64(&dialEnd, time.Now().UnixNano())
			}
		},
	}

	return req.WithContext(httptrace.WithClientTrace(req.Context(), trace)), func() {

                reader.read(is, true, new InputSource("id", pom.toString()));
                i++;
            } catch (XMLStreamException e) {
                throw new RuntimeException("Error parsing: " + pom, e);
            }
        }
        return i;
    }

    /**
     * <p>main.</p>
     *
     * @param args a {@link String} object.