@Deprecated
  public static <K, V> ListMultimap<K, V> unmodifiableListMultimap(
      ImmutableListMultimap<K, V> delegate) {
    return checkNotNull(delegate);
  }
@Deprecated
  public static <K, V> ListMultimap<K, V> unmodifiableListMultimap(
      ImmutableListMultimap<K, V> delegate) {
    return checkNotNull(delegate);
  }
@ Deprecated public static < K , V > ListMultimap < K , V > unmodifiableListMultimap ( ImmutableListMultimap < K , V > delegate ) { return checkNotNull ( delegate ) ; }
Simply returns its argument.

@deprecated no need to use this
@since 10.0
Simply returns its argument .