| ImmutableSet.Builder<E> | ImmutableSet.Builder. add(E element) | Adds elementto theImmutableSet. | 
| ImmutableSet.Builder<E> | ImmutableSet.Builder. add(E... elements) | Adds each element of elementsto theImmutableSet, ignoring duplicate
 elements (only the first duplicate element is added). | 
| ImmutableSet.Builder<E> | ImmutableSet.Builder. addAll(Iterable<? extends E> elements) | Adds each element of elementsto theImmutableSet, ignoring duplicate
 elements (only the first duplicate element is added). | 
| ImmutableSet.Builder<E> | ImmutableSet.Builder. addAll(Iterator<? extends E> elements) | Adds each element of elementsto theImmutableSet, ignoring duplicate
 elements (only the first duplicate element is added). | 
| static <E> ImmutableSet.Builder<E> | ImmutableSet. builder() | Returns a new builder. | 
| static <E> ImmutableSet.Builder<E> | ImmutableSet. builderWithExpectedSize(int expectedSize) | Returns a new builder, expecting the specified number of distinct elements to be added. |