Function psbt_add_keypath_to_last_output

common/psbt_keypath.c:24–33

}

void psbt_add_keypath_to_last_output(struct bitcoin_tx *tx,
				     u32 key_index,
				     const struct ext_key *ext) {
	size_t outndx = tx->psbt->num_outputs - 1;
	struct wally_map *map_in = &tx->psbt->outputs[outndx].keypaths;

	tal_wally_start();
	psbt_set_keypath(key_index, ext, map_in);
	tal_wally_end(tx->psbt);
}