chore: improves python typing hints

Author: becelot

hostingde/dns/requests/update_zone_request.py

@@ -6,10 +6,14 @@
 from hostingde.model.zone_config import ZoneConfig
 
 
+def record_list() -> List[Record]:
+    return []
+
+
 @dataclass
 class UpdateZoneRequest(Model):
 
     zone_config: ZoneConfig
-    records_to_add: Optional[List[Record]] = field(default_factory=list)
-    records_to_modify: Optional[List[Record]] = field(default_factory=list)
-    records_to_delete: Optional[List[Record]] = field(default_factory=list)
+    records_to_add: Optional[List[Record]] = field(default_factory=record_list)
+    records_to_modify: Optional[List[Record]] = field(default_factory=record_list)
+    records_to_delete: Optional[List[Record]] = field(default_factory=record_list)