l-buffers/docs/reference/google.protobuf#duration>google.protobuf.Duration</a></code></td><td><p>Timeout for remote calls to the backend.</p></td></tr><tr id=Connection-authentication><td><code>authentication</code></td><td><code><a href=#Authentication>Authentication</a></code></td><td><p>Auth config for the connection to the backend. If omitted, plain text will
be used.</p></td></tr></tbody></table></section><h2 id=DNSName>DNSName</h2><section><p>An instance field of type DNSName denotes that the expressi