return new UnmodifiableIterator<K>() {
      @Override
      public boolean hasNext() {
        return entryIterator.hasNext();
      }

      @Override
      public K next() {
        return entryIterator.next().getKey();
      }
    };
  }

  Spliterator<K> keySpliterator() {

@Experimental
public interface Project {

    /**
     * Returns the project groupId.
     */
    @Nonnull
    String getGroupId();

    /**
     * Returns the project artifactId.
     */
    @Nonnull
    String getArtifactId();

    /**
     * Returns the project version.
     */
    @Nonnull
    String getVersion();

    /**
     * Returns the project packaging.
     * <p>

    nextAddress += count
    return (from until nextAddress)
      .map {
        return@map InetAddress.getByAddress(
          Buffer().writeInt(it.toInt()).readByteArray(),
        )
      }
  }

  /** Allocates and returns `count` fake IPv6 addresses like [::ff00:64, ::ff00:65].  */
  fun allocateIpv6(count: Int): List<InetAddress> {
    val from = nextAddress
    nextAddress += count
    return (from until nextAddress)

		case data.FileAttributes&syscall.FILE_ATTRIBUTE_DIRECTORY != 0:
			typ = os.ModeDir
		}

		if err = filter(name, typ); err == errDoneForNow {
			// filtering requested to return by caller.
			return nil
		}
	}

	return nil
}

// Return N entries at the directory dirPath.
func readDirWithOpts(dirPath string, opts readDirOpts) (entries []string, err error) {
	// Ensure we don't pick up files as directories.

				in.Error("unclosed #ifdef or #ifndef")
			}
			in.beginningOfLine = tok == '\n'
			if in.enabled() {
				in.text = in.Stack.Text()
				return tok
			}
		}
	}
	in.Error("recursive macro invocation")
	return 0
}

func (in *Input) Text() string {
	return in.text
}

// hash processes a # preprocessor directive. It reports whether it completes.
func (in *Input) hash() bool {

   * @param target a primitive {@code char} value
   * @return {@code true} if {@code array[i] == target} for some value of {@code i}
   */
  public static boolean contains(char[] array, char target) {
    for (char value : array) {
      if (value == target) {
        return true;
      }
    }
    return false;
  }

  /**

      if (array[i] == target) {
        return i;
      }
    }
    return -1;
  }

  /**
   * Returns the values from each provided array combined into a single array. For example, {@code
   * concat(new boolean[] {a, b}, new boolean[] {}, new boolean[] {c}} returns the array {@code {a,
   * b, c}}.
   *
   * @param arrays zero or more {@code boolean} arrays

      if (array[i] == target) {
        return i;
      }
    }
    return -1;
  }

  /**
   * Returns the values from each provided array combined into a single array. For example, {@code
   * concat(new boolean[] {a, b}, new boolean[] {}, new boolean[] {c}} returns the array {@code {a,
   * b, c}}.
   *
   * @param arrays zero or more {@code boolean} arrays

	if !h.kconfig.Enabled {
		return nil
	}
	if err := h.validate(); err != nil {
		return err
	}
	if h.kconfig.QueueDir != "" {
		if err := h.initQueueStoreOnce.DoWithContext(ctx, h.initQueueStore); err != nil {
			return err
		}
		return h.initKafkaOnce.Do(h.init)
	}
	if err := h.init(); err != nil {
		return err
	}
	go h.startKafkaLogger()
	return nil
}

// IsDateNull returns true if date field is null
func (t Transition) IsDateNull() bool {
	return t.Date.Time.IsZero()
}

// IsNull returns true if both date and days fields are null
func (t Transition) IsNull() bool {
	return t.StorageClass == ""
}

// NextDue returns upcoming transition date for obj and true if applicable,
// returns false otherwise.
func (t Transition) NextDue(obj ObjectOpts) (time.Time, bool) {