extends TestUnhashableCollectionGenerator<Collection<UnhashableObject>> {

    @Override
    public Collection<UnhashableObject> create(UnhashableObject[] elements) {
      ImmutableMap.Builder<Integer, UnhashableObject> builder = ImmutableMap.builder();
      int key = 1;
      for (UnhashableObject value : elements) {
        builder.put(key++, value);
      }

 */

package com.google.common.collect;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.collect.testing.SampleElements.Unhashables;
import com.google.common.collect.testing.UnhashableObject;
import java.util.Map;
import org.jspecify.annotations.NullUnmarked;

@GwtIncompatible // GWT's ImmutableMap emulation is backed by java.util.HashMap.
@NullUnmarked

      return insertionOrder;
    }
  }

  public static class ImmutableSortedSetUnhashableGenerator extends TestUnhashableSetGenerator {
    @Override
    public Set<UnhashableObject> create(UnhashableObject[] elements) {
      return ImmutableSortedSet.copyOf(elements);
    }
  }

  public static class ImmutableSetAsListGenerator extends TestStringListGenerator {
    @Override