@UnstableApi
    public boolean keepAliveOnPing() {
        return get(KEEP_ALIVE_ON_PING);
    }
Returns whether to keep connection alive when an HTTP/2 PING frame or the response of
{@code "OPTIONS * HTTP/1.1"} is received.
core/src/main/java/com/linecorp/armeria/client/ClientFactoryOptions.java