https://travis-ci.org/github/bitcoin/bitcoin/jobs/680452476#L6107
}
    uint256 hash_block;
    const CTransactionRef tx = GetTransaction(blockindex, node.mempool.get(), hash, Params().GetConsensus(), hash_block);
    if (!tx) {
        std::string errmsg;
        if (blockindex) {
            if (!(blockindex->nStatus & BLOCK_HAVE_DATA)) {
                throw JSONRPCError(RPC_MISC_ERROR, "Block not available");
            }
            errmsg = "No such transaction found in the provided block";
        } else if (!g_txindex) {
            errmsg = "No such mempool transaction. Use -txindex or provide a block hash to enable blockchain transaction queries";
        } else if (!f_txindex_ready) {
            errmsg = "No such mempool transaction. Blockchain transactions are still in the process of being indexed";
        } else {
            errmsg = "No such mempool or blockchain transaction";
        }
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, errmsg + ". Use gettransaction for wallet transactions.");
    }
    if (!fVerbose) {
        return EncodeHexTx(*tx, RPCSerializationFlags());
    }
    UniValue result(UniValue::VOBJ);
    if (blockindex) result.pushKV("in_active_chain", in_active_chain);
    TxToJSON(*tx, hash_block, result);
    return result;
},
    };
}
static RPCHelpMan gettxoutproof()