Allow apply to take a single Entity or FeatureView (#1457)

Signed-off-by: Jacob Klegar <jacob@tecton.ai>

sdk/python/feast/feature_store.py

@@ -176,7 +176,9 @@ def delete_feature_view(self, name: str):
 
         return self._registry.delete_feature_view(name, self.project)
 
-    def apply(self, objects: List[Union[FeatureView, Entity]]):
+    def apply(
+        self, objects: Union[Entity, FeatureView, List[Union[FeatureView, Entity]]]
+    ):
         """Register objects to metadata store and update related infrastructure.
 
         The apply method registers one or more definitions (e.g., Entity, FeatureView) and registers or updates these
@@ -210,6 +212,8 @@ def apply(self, objects: List[Union[FeatureView, Entity]]):
         # TODO: Add locking
         # TODO: Optimize by only making a single call (read/write)
 
+        if isinstance(objects, Entity) or isinstance(objects, FeatureView):
+            objects = [objects]
         views_to_update = []
         for ob in objects:
             if isinstance(ob, FeatureView):

sdk/python/tests/test_feature_store.py

@@ -79,8 +79,8 @@ def test_apply_entity_success(test_feature_store):
         labels={"team": "matchmaking"},
     )
 
-    # Register Entity with Core
-    test_feature_store.apply([entity])
+    # Register Entity
+    test_feature_store.apply(entity)
 
     entities = test_feature_store.list_entities()
 
@@ -107,7 +107,7 @@ def test_apply_entity_integration(test_feature_store):
         labels={"team": "matchmaking"},
     )
 
-    # Register Entity with Core
+    # Register Entity
     test_feature_store.apply([entity])
 
     entities = test_feature_store.list_entities()