*/
    @Override
    public Iterator<E> iterator() {
        return map.keySet().iterator();
    }

    /**
     * Returns the number of elements in this set (its cardinality).
     *
     * @return the number of elements in this set (its cardinality).
     */
    @Override
    public int size() {
        return map.size();
    }

    /**
     * Returns true if this set contains no elements.
     *

import org.opensearch.search.aggregations.bucket.histogram.Histogram;
import org.opensearch.search.aggregations.bucket.terms.Terms;
import org.opensearch.search.aggregations.metrics.Avg;
import org.opensearch.search.aggregations.metrics.Cardinality;

import jakarta.annotation.Resource;

/**
 * Service class for managing search logs and related analytics.
 *
 * This service provides functionality for querying, aggregating, and managing

          dups.set(i);
        }
      }
      if (dups.isEmpty()) {
        return null;
      }
      @SuppressWarnings({"rawtypes", "unchecked"})
      Entry<K, V>[] newEntries = new Entry[size - dups.cardinality()];
      for (int inI = 0, outI = 0; inI < size; inI++) {
        if (!dups.get(inI)) {
          newEntries[outI++] = entries[inI];
        }
      }
      return newEntries;
    }
  }

  /**

          dups.set(i);
        }
      }
      if (dups.isEmpty()) {
        return localAlternatingKeysAndValues;
      }
      Object[] newAlternatingKeysAndValues = new Object[(size - dups.cardinality()) * 2];
      for (int inI = 0, outI = 0; inI < size * 2; ) {
        if (dups.get(inI >>> 1)) {
          inI += 2;
        } else {
          newAlternatingKeysAndValues[outI++] =

   */
  @GwtIncompatible // SmallCharMatcher
  CharMatcher precomputedInternal() {
    BitSet table = new BitSet();
    setBits(table);
    int totalCharacters = table.cardinality();
    if (totalCharacters * 2 <= DISTINCT_CHARS) {
      return precomputedPositive(totalCharacters, table, toString());
    } else {