I was playing around with a probably-too-cute script for LN channel smart contract, and was looking for something to decide for me if miniscript can infer the structure of the script.

f.e.

```
decodescript 82012088a914ffffffffffffffffffffffffffffffffffffffff8820ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffad51b2

{
  "asm": "OP_SIZE 32 OP_EQUALVERIFY OP_HASH160 ffffffffffffffffffffffffffffffffffffffff OP_EQUALVERIFY ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff OP_CHECKSIGVERIFY 1 OP_CHECKSEQUENCEVERIFY",
  "desc": "raw(82012088a914ffffffffffffffffffffffffffffffffffffffff8820ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffad51b2)#5guaahuv",
  "type": "nonstandard",
  "p2sh": "33YyjgxsJYwSi8Wbp7TaCSFAuJBoUfYWDQ",
  "segwit": {
    "asm": "0 99f5d0b69f9828fea9363198cf812e95d7fc5e94c7881092b8e3f43984c1bd5c",
    "desc": "addr(bc1qn86apd5lnq50a2fkxxvvlqfwjhtlch55c7yppy4cu06rnpxph4wqrar3md)#wtlf0gwk",
    "hex": "002099f5d0b69f9828fea9363198cf812e95d7fc5e94c7881092b8e3f43984c1bd5c",
    "address": "bc1qn86apd5lnq50a2fkxxvvlqfwjhtlch55c7yppy4cu06rnpxph4wqrar3md",
    "type": "witness_v0_scripthash",
    "p2sh-segwit": "3MRJN2wTnD2BVm31HLcBwueAYpbbximrtk"
  }
}
```

Since it's evaluated at "top level for `desc` it cannot get any meaningful structure from it. Perhaps in `segwit` it could try infering the miniscript in the segwit context


bool f_txindex_ready = false;
    if (g_txindex && !blockindex) {
        f_txindex_ready = g_txindex->BlockUntilSyncedToCurrentChain();
    }
    uint256 hash_block;
    const CTransactionRef tx = GetTransaction(blockindex, node.mempool.get(), hash, chainman.GetConsensus(), hash_block);
    if (!tx) {
        std::string errmsg;
        if (blockindex) {
            const bool block_has_data = WITH_LOCK(::cs_main, return blockindex->nStatus & BLOCK_HAVE_DATA);
            if (!block_has_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 (verbosity <= 0) {
        return EncodeHexTx(*tx, RPCSerializationFlags());
    }
    UniValue result(UniValue::VOBJ);
    if (blockindex) {
        LOCK(cs_main);
        result.pushKV("in_active_chain", chainman.ActiveChain().Contains(blockindex));