* @since 27.1
   */
  Set<E> edgesConnecting(EndpointPair<N> endpoints);

  /**
   * Returns the single edge that directly connects {@code nodeU} to {@code nodeV}, if one is
   * present, or {@code null} if no such edge exists.
   *
   * <p>In an undirected network, this is equal to {@code edgeConnectingOrNull(nodeV, nodeU)}.
   *

        return registrations.containsKey(registrationId);
    }

    /**
     * Simulate sending a witness notification
     *
     * @param eventType the event type
     * @param resourceName the resource name
     */
    public void sendNotification(WitnessEventType eventType, String resourceName) {

     * Search engines may use this information when selecting between URLs on
     * the same site, so you can use this tag to increase the likelihood that
     * your most important pages are present in a search index.
     *
     * Also, please note that assigning a high priority to all of the URLs on
     * your site is not likely to help you. Since the priority is relative, it

        // This should not throw an exception
        assertDoesNotThrow(() -> ntlmServlet.init(servletConfig));
    }

    /**
     * Test the service method when no Authorization header is present and no session exists.
     * Expects a 401 Unauthorized response with NTLM and Basic authentication challenges.
     * @throws ServletException
     * @throws IOException
     */
    @Test

            Set<RequestData> childUrls = e.getChildUrlList();
            assertNotNull(childUrls);
            assertEquals(3, childUrls.size());

            // Verify all URLs are present
            List<String> urls = new ArrayList<>();
            for (RequestData rd : childUrls) {
                urls.add(rd.getUrl());
            }
            assertTrue(urls.contains("https://example.com/page1"));

        // Need to reopen logic to set handle again
        // Reset open flag by reconstructing target
        target = new SmbPipeHandleImpl(pipe);

        target.ensureOpen(); // handle present but invalid per isValid=false
        target.close();
        verify(fileHandle, atLeastOnce()).release();
    }

    @Test
    @DisplayName("getSessionKey fetches via tree->session and returns bytes")

 * MultisetSetCountConditionallyTester}. It is used by those testers to test calls to the
 * unconditional {@code setCount()} method and calls to the conditional {@code setCount()} method
 * when the expected present count is correct.
 *
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

        assertTrue(mockService.processHeartbeat(regId, 1));
        assertTrue(mockService.processHeartbeat(regId, 2));
        assertTrue(mockService.processHeartbeat(regId, 3));

        // 3. Event notifications
        mockService.sendNotification(WitnessEventType.RESOURCE_CHANGE, "\\\\cluster\\share");
        mockService.sendNotification(WitnessEventType.CLIENT_MOVE, "\\\\cluster\\share");

   */
  @CanIgnoreReturnValue
  int remove(@CompatibleWith("E") @Nullable Object element, int occurrences);

  /**
   * Removes a <i>single</i> occurrence of the specified element from this multiset, if present.
   *
   * <p>This method refines {@link Collection#remove} to further specify that it <b>may not</b>
   * throw an exception in response to {@code element} being null or of the wrong type.
   *

            }
            return id;
        }
    }

    /**
     * Statistics data object that stores timestamped events and maintains reference counting.
     * Extends LinkedHashMap to store event names mapped to their timestamps.
     * Includes reference counting for multi-threaded access tracking.
     */
    public static class StatsObject extends LinkedHashMap<String, Long> {