assertTrue("Multiple commands should be settable", true);

        // Test with empty list
        generator.setCommandList(new ArrayList<>());
        assertTrue("Empty command list should be settable", true);

        // Test with single command
        generator.setCommandList(Collections.singletonList("single_command"));
        assertTrue("Single command should be settable", true);
    }

 * k). In benchmarks, this implementation performs at least as well as either implementation, and
 * degrades more gracefully for worst-case input.
 *
 * <p>The implementation does not necessarily use a <i>stable</i> sorting algorithm; when multiple
 * equivalent elements are added to it, it is undefined which will come first in the output.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class TopKSelector<