@Override
    public ClientFactoryBuilder tls(TlsKeyPair tlsKeyPair) {
        requireNonNull(tlsKeyPair, "tlsKeyPair");
        return tlsCustomizer(customizer -> customizer.keyManager(tlsKeyPair.privateKey(),
                                                                 tlsKeyPair.certificateChain()));
    }
Configures SSL or TLS for client certificate authentication with the specified {@link TlsKeyPair}.
core/src/main/java/com/linecorp/armeria/client/ClientFactoryBuilder.java