code: public static ErrorMessageFactory elementsShouldBeExactly(Object actual, int times, Matcher<?> condition) {
      return new ElementsShouldBeExactly(actual, times, condition);
    }
docs: Creates a new </code>{@link ElementsShouldBeExactly}</code>.
  @param actual the actual value in the failed assertion.
  @param times exactly times the condition should be verify.
  @param condition the {@code Condition}.
  @return the created {@code ErrorMessageFactory}.