Method of

guava/src/com/google/common/collect/ImmutableBiMap.java:76–79

()

   */
  class="cm">// Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings(class="st">"unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {
    return (ImmutableBiMap<K, V>) RegularImmutableBiMap.EMPTY;
  }

  /** Returns an immutable bimap containing a single entry. */
  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1) {