title">
                    Returns <span class="tsd-signature-type">undefined</span
                    ><span class="tsd-signature-symbol"> | </span
                    ><span class="tsd-signature-symbol">{ </span>Bottleneck<span
                      class="tsd-signature-symbol"
                      >: </span
                    ><span class="tsd-signature-symbol">typeof </span
                    ><span class="tsd-signature-type">Bottleneck</span
                    ><span class="tsd-signature-symbol">