protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        indexUpdateCallback = new FileListIndexUpdateCallbackImpl(null, null, 1);
    }

    /** Case 1: Normal merge (no duplicates) */
    @Test
    public void test_mergeResponseData_noOverwrite() {
        Map<String, Object> dataMap = new HashMap<>();
        dataMap.put("a", "A0");
        Map<String, Object> responseDataMap = new HashMap<>();

   with its <<<DefaultModelValidator>>> implementation
   ({{{./xref/org/apache/maven/model/validation/DefaultModelValidator.html}source}})

   ** model normalization - merge duplicates: <<<ModelNormalizer>>> ({{{./apidocs/org/apache/maven/model/normalization/ModelNormalizer.html}javadoc}}),
   with its <<<DefaultModelNormalizer>>> implementation

		// Range cannot start bigger than end.
		{":9000", []string{"/export1{64...1}"}, false},
		// Range can only be numeric.
		{":9000", []string{"/export1{a...z}"}, false},
		// Duplicate disks not allowed.
		{":9000", []string{"/export1{1...32}", "/export1{1...32}"}, false},
		// Same host cannot export same disk on two ports - special case localhost.

> NOTE: Server side replication is supported for idempotent versions on directory objects.

### Idempotent versions on delete markers

    /** The key of the message: Duplicate Name */
    public static final String LABELS_duplicate_name = "{labels.duplicate_name}";

    /** The key of the message: Duplicate Host */
    public static final String LABELS_duplicate_host_configuration = "{labels.duplicate_host_configuration}";

    /** The key of the message: Duplicate Host */

   *
   * @param anElement one of the elements the set should contain
   * @param otherElements the rest of the elements the set should contain
   * @return an immutable set containing those elements, minus duplicates
   */
  public static <E extends Enum<E>> ImmutableSet<E> immutableEnumSet(
      E anElement, E... otherElements) {
    return ImmutableEnumSet.asImmutable(EnumSet.of(anElement, otherElements));
  }

  /**

        }
        return scope == null || !scope.isTransitive();
    }

    private Dependency merge(Dependency dep1, Dependency dep2) {
        throw new IllegalArgumentException("Duplicate dependency: " + getDependencyKey(dep1));
    }

    private static String getDependencyKey(org.apache.maven.api.Dependency dependency) {
        return dependency.getGroupId() + ":" + dependency.getArtifactId() + ":"

                current.println('---')
                if (test.name != null && test.name.isBlank() == false) {
                    if(names.add(test.name) == false) {
                        throw new InvalidUserDataException("Duplicated snippet name '$test.name': $test")
                    }
                    current.println("\"$test.name\":")
                } else {
                    current.println("\"line_$test.start\":")
                }

    graph.putEdgeValue(2, 3, "2-3");
    graph.putEdgeValue(2, 1, "2-1");
    graph.putEdgeValue(2, 4, "2-4");
    graph.putEdgeValue(1, 2, "1-2"); // Duplicate nodes, different value

    assertThat(graph.incidentEdges(2))
        .containsExactly(
            EndpointPair.unordered(2, 3),
            EndpointPair.unordered(1, 2),
            EndpointPair.unordered(2, 4))

            )
        )
    return model_fields


@lru_cache
def get_cached_model_fields(model: type[BaseModel]) -> list[ModelField]:
    return get_model_fields(model)


# Duplicate of several schema functions from Pydantic v1 to make them compatible with
# Pydantic v2 and allow mixing the models

TypeModelOrEnum = type["BaseModel"] | type[Enum]
TypeModelSet = set[TypeModelOrEnum]