Function psbt_get_lightning

bitcoin/psbt.c:739–751

}

void *psbt_get_lightning(const struct wally_map *map,
			 const u8 proprietary_type,
			 size_t *val_len)
{
	u8 *key = psbt_make_key(NULL, proprietary_type, NULL);
	const struct wally_map_item *item;
	item = wally_map_get(map, key, tal_bytelen(key));
	tal_free(key);
	if (!item)
		return NULL;
	*val_len = item->value_len;
	return item->value;
}

void psbt_set_lightning(const tal_t *ctx,
			struct wally_map *map,