Method builder

guava/src/com/google/common/collect/ImmutableSet.java:435–437

Returns a new builder. The generated builder is equivalent to the builder created by the {@link Builder} constructor.

()

   * Builder} constructor.
   */
  public static <E> Builder<E> builder() {
    return new Builder<>();
  }

  /**
   * Returns a new builder, expecting the specified number of distinct elements to be added.