class JsonRpc2_0Rx {

    public Observable<EthBlock> replayBlocksObservable(
            DefaultBlockParameter startBlock, DefaultBlockParameter endBlock,
            boolean fullTransactionObjects) {
        return replayBlocksObservable(startBlock, endBlock, fullTransactionObjects, true);
    }

    public  JsonRpc2_0Rx(Web3j web3j, ScheduledExecutorService scheduledExecutorService);

}