this.second = second;
    }

    /**
     * Returns the first value.
     *
     * @return The first value
     */
    public T1 getFirst() {
        return first;
    }

    /**
     * Sets the first value.
     *
     * @param first
     *            The first value
     */
    public void setFirst(final T1 first) {
        this.first = first;
    }

    /**
     * Returns the second value.

  }

  private abstract static class AtomicHelper {
    /** Performs an atomic compare-and-set of {@link AggregateFutureState#seenExceptionsField}. */
    abstract void compareAndSetSeenExceptions(
        AggregateFutureState<?> state, @Nullable Set<Throwable> expect, Set<Throwable> update);

    /** Performs an atomic decrement-and-get of {@link AggregateFutureState#remainingField}. */

    Instant getStartInstant();

    // Goals
    MavenExecutionRequest setGoals(List<String> goals);

    List<String> getGoals();

    // Properties

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *

{* ../../docs_src/body_nested_models/tutorial002_py310.py hl[12] *}

## Set types { #set-types }

But then we think about it, and realize that tags shouldn't repeat, they would probably be unique strings.

And Python has a special data type for sets of unique items, the `set`.

Then we can declare `tags` as a set of strings:

{* ../../docs_src/body_nested_models/tutorial003_py310.py hl[12] *}

     */
    void mergeDuplicates(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

    /**
     * Sets default values in the specified model that for technical reasons cannot be set directly in the Modello
     * definition.
     *
     * @param model The model in which to set the default values, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.

     *
     * @see org.codelibs.fess.crawler.entity.Sitemap#getLoc()
     */
    @Override
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location of the sitemap.
     * @param loc the location URL to set
     */
    public void setLoc(final String loc) {
        this.loc = loc;
    }

    /*
     * (non-Javadoc)
     *

  /**
   * In some cases our graph implementations return custom sets that define their own size() and
   * contains(). Verify that these sets are consistent with the elements of their iterator.
   */
  @CanIgnoreReturnValue
  static <T> Set<T> sanityCheckSet(Set<T> set) {
    assertThat(set).hasSize(Iterators.size(set.iterator()));
    for (Object element : set) {
      assertThat(set).contains(element);
    }

     * Gets the negotiation result code
     * @return the result code
     */
    public int getResult() {
        return this.result;
    }

    /**
     * Sets the negotiation result code
     * @param result the result code to set
     */
    public void setResult(final int result) {
        this.result = result;
    }

    /**
     * Gets the selected authentication mechanism OID

     */
    public void unsetFlag(final int flag) {
        flags &= ~flag;
    }

    /**
     * Sets a specific flag
     * @param flag the flag to set
     */
    public void setFlag(final int flag) {
        flags |= flag;
    }

    /**
     * Get the result of the DCERPC call.
     * @return result exception if the call failed, null otherwise
     */
    public DcerpcException getResult() {

     *
     * @param cause the cause
     */
    public CrawlingAccessException(final Throwable cause) {
        super(cause);
    }

    /**
     * Sets the log level for this exception.
     *
     * @param logLevel the log level to set
     */
    public void setLogLevel(final String logLevel) {
        this.logLevel = logLevel;
    }

    /**
     * Checks if the log level is DEBUG.
     *