return optional.orNull();
        }
      };

  /**
   * Sets.cartesianProduct doesn't allow sets that contain null, but we want null to mean "don't
   * call the associated CacheBuilder method" - that is, get the default CacheBuilder behavior. This
   * method wraps the elements in the input sets (which may contain null) as Optionals, calls
   * Sets.cartesianProduct with those, then transforms the result to unwrap the Optionals.
   */

 *     visit(t.getGenericComponentType());
 *   }
 *   protected void visitTypeVariable(TypeVariable<?> t) {
 *     throw new IllegalArgumentException("Cannot contain type variable.");
 *   }
 *   protected void visitWildcardType(WildcardType t) {
 *     throw new IllegalArgumentException("Cannot contain wildcard type.");
 *   }
 * }.visit(type);
 * }
 *
 * <p>One {@code Type} is visited at most once. The second time the same type is visited, it's

    return nodeV;
  }

  /**
   * Returns the node that is adjacent to {@code node} along the origin edge.
   *
   * @throws IllegalArgumentException if this {@link EndpointPair} does not contain {@code node}
   * @since 20.0 (but the argument type was changed from {@code Object} to {@code N} in 31.0)
   */
  public final N adjacentNode(N node) {
    if (node.equals(nodeU)) {
      return nodeV;

    }

    /**
     * Returns a filter for directories that may contain paths accepted by the given matcher.
     * The given path matcher should be an instance created by this service.
     * The path matcher returned by this method expects directory paths.
     * If that matcher returns {@code false}, then the directory will definitively not contain
     * the paths selected by the matcher given in argument to this method.

| `terms_of_service` | `str` | A URL to the Terms of Service for the API. If provided, this has to be a URL. |

     * contain.
     */
    @CanIgnoreReturnValue
    public Builder add(long value) {
      ensureRoomFor(1);
      array[count] = value;
      count += 1;
      return this;
    }

    /**
     * Appends {@code values}, in order, to the end of the values the built {@link
     * ImmutableLongArray} will contain.
     */
    @CanIgnoreReturnValue

     * contain.
     */
    @CanIgnoreReturnValue
    public Builder add(int value) {
      ensureRoomFor(1);
      array[count] = value;
      count += 1;
      return this;
    }

    /**
     * Appends {@code values}, in order, to the end of the values the built {@link
     * ImmutableIntArray} will contain.
     */
    @CanIgnoreReturnValue

        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("command=SMB_COM_CREATE_DIRECTORY"),
                "String should contain the command name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("directoryName=myDir"),
                "String should contain the directory name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.endsWith("]"), "String should end with ']'");
    }

     */
    @Required
    public String dictId;

    /**
     * The multipart file containing the stopwords to be uploaded.
     * This file should contain a list of words that should be filtered out during indexing.
     */
    @Required
    public MultipartFormFile stopwordsFile;

    /**
     * Default constructor for UploadForm.

        assertTrue(resource1.getLocator().getURL().toString().contains("server1"), "First resource should contain server1");
        assertTrue(resource2.getLocator().getURL().toString().contains("server2"), "Second resource should contain server2");
    }