Use hasattr() instead of self.__dict__

src/posit/connect/content.py

@@ -347,17 +347,17 @@ def environment_variables(self) -> EnvVars:
     def permissions(self) -> Permissions:
         return Permissions(context_to_resource_parameters(self._ctx), self["guid"])
 
-    _owner: User
-
     @property
     def owner(self) -> dict:
-        if "_owner" not in self.__dict__:
+        if not hasattr(self, "_owner"):
             # It is possible to get a content item that does not contain owner.
             # "owner" is an optional additional request param.
             # If it's not included, we can retrieve the information by `owner_guid`
             from .users import Users
 
-            self._owner = Users(context_to_resource_parameters(self._ctx)).get(self["owner_guid"])
+            self._owner: User = Users(context_to_resource_parameters(self._ctx)).get(
+                self["owner_guid"]
+            )
         return self._owner
 
     @property

src/posit/connect/jobs.py

@@ -289,7 +289,7 @@ def jobs(self: ContentItemP) -> Jobs:
         """
         # Do not cache result. `content.jobs` should always return the latest jobs.
 
-        # if self.__dict__.get("_jobs") is not None:
+        # if hasattr(self, "_jobs"):
         #     # Early return
         #     return self._jobs
 

src/posit/connect/vanities.py

@@ -157,7 +157,7 @@ class ContentItemVanityMixin:
     @property
     def vanity(self: ContentItemVanityP) -> str | None:
         """Get the vanity."""
-        if "_vanity" in self.__dict__ and self._vanity:
+        if hasattr(self, "_vanity") and self._vanity:
             return self._vanity["path"]
 
         try: