Template system now supports default values

tests/test_places_high_sierra_10_13_6.py

@@ -1,8 +1,6 @@
 """ Test PlaceInfo """
 import pytest
 
-from osxphotos._constants import _UNKNOWN_PERSON
-
 PHOTOS_DB = "./tests/Test-Places-High-Sierra-10.13.6.photoslibrary/database/photos.db"
 
 UUID_DICT = {
@@ -144,6 +142,7 @@ def test_place_place_info_4():
     assert photo.place.names.sub_throughfare == []
     assert photo.place.names.body_of_water == ["River Torrens"]
 
+
 def test_place_no_place_info():
     # test valid place info
     import osxphotos