class Script {

    public boolean isSentToRawPubKey() {
        return chunks.size() == 2 && chunks.get(1).equalsOpCode(OP_CHECKSIG) &&
               !chunks.get(0).isOpCode() && chunks.get(0).data.length > 1;
    }

    private  Script();
      Script(List<ScriptChunk> chunks);
    public  Script(byte[] programBytes);
    public  Script(byte[] programBytes, long creationTimeSeconds);

}