1 files changed, 3 insertions, 2 deletions
diff --git a/swiftstory/cards.py b/swiftstory/cards.py
index 62f1e37..96438cc 100644
--- a/swiftstory/cards.py
+++ b/swiftstory/cards.py
@@ -1,18 +1,19 @@
 import json
 import os
+from typing import List
 
 import pkg_resources
 
 
 class Cards:
     @staticmethod
-    def get_white_cards(lang):
+    def get_white_cards(lang: str) -> List[str]:
         ''' Read the file containing the white cards and return a list of cards '''
         fh = pkg_resources.resource_stream(__name__, os.path.join("data/lang", lang, "cards/white.json"))
         return json.load(fh)
 
     @staticmethod
-    def get_black_cards(lang):
+    def get_black_cards(lang: str) -> List[str]:
         ''' Read the file containing the black cards and return a list of cards '''
         fh = pkg_resources.resource_stream(__name__, os.path.join("data/lang", lang, "cards/black.json"))
         return json.load(fh)