Worked on #13 and #4. There are some caching issues left, though. Introduced abstract class Cacheable. Replaced async_pymongo with pymongo

modules/utils/datetime_utils.py

@@ -5,3 +5,8 @@ from zoneinfo import ZoneInfo
 # TODO Add documentation
 def get_unix_timestamp(date: datetime, to_utc: bool = False) -> int:
     return int((date if not to_utc else date.replace(tzinfo=ZoneInfo("UTC"))).timestamp())
+
+
+# TODO Add documentation
+def get_utc_now() -> datetime:
+    return datetime.now(tz=ZoneInfo("UTC"))