code: @NonNull public static ListPhrase from(@NonNull CharSequence twoElementSeparator,
        CharSequence nonFinalElementSeparator, CharSequence finalElementSeparator) {
      return new ListPhrase(twoElementSeparator, nonFinalElementSeparator, finalElementSeparator);
    }
docs: Entry point into this API.
  
  @param twoElementSeparator separator for 2-element lists
  @param nonFinalElementSeparator separator for non-final elements of lists with 3 or more
  elements
  @param finalElementSeparator separator for final elements in lists with 3 or more elements