public AbstractRequestContextBuilder localAddress(InetSocketAddress localAddress) {
        this.localAddress = requireNonNull(localAddress, "localAddress");
        return this;
    }
Sets the local socket address of the connection. If not set, it is auto-generated with the localhost
IP address (e.g. {@code "127.0.0.1"} or {@code "::1"}).
core/src/main/java/com/linecorp/armeria/common/AbstractRequestContextBuilder.java