map = _notmuch_message_property_map (message);
if (! map)
return NOTMUCH_STATUS_NULL_POINTER;
notmuch_string_map_iterator_t *matcher = _notmuch_string_map_iterator_create (map, key, true);
map = _notmuch_message_property_map (message);
if (! map)
return NOTMUCH_STATUS_NULL_POINTER;
notmuch_string_map_iterator_t *matcher = _notmuch_string_map_iterator_create (map, key, true);