public interface  io.netty.handler.codec.http.websocketx.extensions.WebSocketExtension extends java.lang.Object
{
public static final int RSV1;
public static final int RSV2;
public static final int RSV3;
public abstract int rsv();
public abstract io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionEncoder newExtensionEncoder();
public abstract io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionDecoder newExtensionDecoder();
}