public withTlsVersions(minVersion as String, maxVersion as String = "") as TlsOptions:
Returns a copy with minimum and optional maximum TLS versions.
Accepted values include TLSv1.0, TLSv1.1, TLSv1.2, TLSv1.3, 1.0, 1.1, 1.2 and 1.3.
import klyn.net
tls = TlsOptions.clientDefault().withTlsVersions("1.2", "1.3")
print(tls.minVersion)