import org.jspecify.annotations.NullMarked;

/**
 * A skeleton generator for a {@code SetMultimap} implementation.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public abstract class TestStringSetMultimapGenerator
    implements TestSetMultimapGenerator<String, String> {

  @Override
  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        mapEntry("one", "January"),

import com.google.common.collect.testing.features.MapFeature;
import com.google.common.collect.testing.google.SetMultimapTestSuiteBuilder;
import com.google.common.collect.testing.google.TestStringSetMultimapGenerator;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.SerializableTester;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;