5 -.5"></path></svg></a></h3><ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-external"><li class="tsd-signature tsd-kind-icon">sign<wbr/>Message<span class="tsd-signature-symbol">(</span>message<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">Bytes</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class