RPC bumpfee with an explicit feerate using `conf_target` and `estimate_mode` errors with `JSONRPCException: JSON integer out of range (-1)`.
[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::string wallet_name;
    if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
        if (!request.params[0].isNull()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot unload the requested wallet");
        }
    } else {
        wallet_name = request.params[0].get_str();
    }
    std::shared_ptr<CWallet> wallet = GetWallet(wallet_name);
    if (!wallet) {
        throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
    }
    
    
    
    std::vector<bilingual_str> warnings;
    Optional<bool> load_on_start = request.params[1].isNull() ? nullopt : Optional<bool>(request.params[1].get_bool());
    if (!RemoveWallet(wallet, load_on_start, warnings)) {
        throw JSONRPCError(RPC_MISC_ERROR, "Requested wallet already unloaded");
    }
    UnloadWallet(std::move(wallet));
    UniValue result(UniValue::VOBJ);
    result.pushKV("warning", Join(warnings, Untranslated("\n")).original);
    return result;
},
    };
}
static RPCHelpMan listunspent()