code: @Beta
    public static <K, V> ImmutableMap<K, V> copyOf(
        Iterable<? extends Entry<? extends K, ? extends V>> entries) {
      int initialCapacity =
          (entries instanceof Collection)
              ? ((Collection<?>) entries).size()
              : ImmutableCollection.Builder.DEFAULT_INITIAL_CAPACITY;
      ImmutableMap.Builder<K, V> builder = new ImmutableMap.Builder<K, V>(initialCapacity);
      builder.putAll(entries);
      return builder.build();
    }
docs: Returns an immutable map containing the specified entries. The returned map iterates over
  entries in the same order as the original iterable.
  
  @throws NullPointerException if any key, value, or entry is null
  @throws IllegalArgumentException if two entries have the same key
  @since 19.0