 other end of the
connection is going to start the TLS handshake.</p>
<p>If the <code>socket</code> already has a subscription, pass the existing
subscription in the <code>subscription</code> parameter. The <a href="../../dart-io/RawSecureSocket/secureServer.html">secureServer</a>
operation will take over the subscription by replacing the
handlers with it own secure processing. The caller must not touch
this subscription anymore. Passing a paused subscription is an
error.</p>
<p>If some of the data of the T