i've been worried about adding functionality to
libtriplyincineratedwastefromthecompactor but i found there's
_already_ opreturn use _in the test.py script_. here's the snippet:
tx, unspent, fee, balance = bitcoin.op_return(privkey, unspents,
min_fee, fee_per_kb, 'hello', 'world', forkid = True)#utxos,
fee_per_kb, 'hello', 'world')
print('sending tx:', tx.hash_hex)
txid = await blockchainmodule.blockchain.broadcast(tx.bytes)
print('sent', txid) # this is where it dumps the shreds in the toilet
# then it has to wait for all the flushes
