Update method __date

Author: IhorSotnyk

monobank_api_client/managers.py

@@ -65,7 +65,7 @@ def session(cls) -> requests.Session:
         return requests.Session()
 
     @staticmethod
-    def __date(period: int) -> Tuple[int]:
+    def __date(period: int) -> Tuple[int|Dict]:
         _day = 86400   # 1 day (UNIX)
         try:
             time_delta = int(datetime.now().timestamp()) - (period * _day)