  <h4 class="tsd-returns-title">
                      Returns (<span class="tsd-signature-type">null</span> <span class="tsd-signature-symbol">|</span>
                      <span class="tsd-signature-type">number</span>)<span class="tsd-signature-symbol">[]</span>
                    </h4>
                    <aside class="tsd-sources">
                      <p>
                        Inherited from <a href="NumberIndicatorSeries.html">NumberIndicatorSeries</a>.<a
                          href="NumberIn