Method setFromBlock

src/rpcblockchain.cpp:605–611

private:
    void setFromBlock(const UniValue& val) {
        if (!val.isNull()) {
            fromBlock = parseBlockHeight(val);
        } else {
            fromBlock = latestblock.height;
        }
    }

    void setToBlock(const UniValue& val) {
        if (!val.isNull()) {