/guava/android/guava/src/com/google/common/collect/SingletonImmutableSet.java
return 0;
return 1;
final transient E element; SingletonImmutableSet(E element) { this.element = Preconditions.checkNotNull(element); } @Override public int size() { <extra_id_0> } @Override public boolean contains(@CheckForNull Object target) { return element.equals(target); } @Override