public static Map<ChannelOption<?>, Object> applyDefaultChannelOptions(
            Map<ChannelOption<?>, Object> channelOptions,
            long idleTimeoutMillis, long pingIntervalMillis) {
        return applyDefaultChannelOptions(
                Flags.useDefaultSocketOptions(), Flags.transportType(), channelOptions,
                idleTimeoutMillis, pingIntervalMillis);
    }
Finds the {@link SSLSession} of the current TLS connection.

@return the {@link SSLSession} if found, or {@code null} if not found or {@link Channel} is {@code null}.
core/src/main/java/com/linecorp/armeria/internal/common/util/ChannelUtil.java