wally_psbt_input_get_outpoint implementation in bitcoin/psbt.h

[ddustin]

wally_psbt_input_get_outpoint... but I've said that so many times I think we need a bitcoin/psbt.h:

struct wally_psbt_input *wally_psbt_get_input_spending(const struct wally_psbt *psbt, const struct bitcoin_outpoint *out, size_t *in_num)

where in_num is set if non-NULL (and return is non-NULL).

Originally posted by @rustyrussell in #6253 (comment)

[jgriffiths]

Hi, you can implement this trivially as a wrapper over psbt_find_input_spending_utxo() in ElementsProject/libwally-core#403 once merged.