fun supportsTlsExtensions(): Boolean = supportsTlsExtensions

  /** Applies this spec to [sslSocket]. */
  internal fun apply(
    sslSocket: SSLSocket,
    isFallback: Boolean,
  ) {
    val specToApply = supportedSpec(sslSocket, isFallback)

    if (specToApply.tlsVersions != null) {
      sslSocket.enabledProtocols = specToApply.tlsVersionsAsString
    }

    if (specToApply.cipherSuites != null) {