New date and time behavior, improved typing

src/pyrmv/classes/gis.py

@@ -1,13 +1,14 @@
-from typing import Any, Mapping
+from datetime import timedelta
+from typing import Any, Mapping, Union
 
-from isodate import parse_duration
+from isodate import Duration, parse_duration
 
 
 class Gis:
     """Gis object."""
 
     def __init__(self, ref: str, route: Mapping[str, Any]):
-        self.ref = ref
-        self.dist = route["dist"]
-        self.duration = parse_duration(route["durS"])
-        self.geo = route["dirGeo"]
+        self.ref: str = ref
+        self.dist: Union[int, None] = route.get("dist")
+        self.duration: Union[Duration, timedelta] = parse_duration(route["durS"])
+        self.geo: Union[int, None] = route.get("dirGeo")