Implemented item indexer on Repository class.

devops.py

@@ -1,3 +1,4 @@
+from __future__ import annotations
 import requests
 import urllib.parse
 from uuid import UUID
@@ -120,7 +121,7 @@ class Organization(DevOps):
                 list_url="_apis/projects")
         return self._projects
 
-    def __getitem__(self, key: str) -> 'Project':
+    def __getitem__(self, key: str) -> Project:
         for project in self.projects:
             if project.id == key or project.name == key:
                 return project
@@ -157,10 +158,18 @@ class Project(DevOps):
 
     @property
     def repositories(self):
-        return self._entities(
-            entity_class=Repository,
-            key_name="id",
-            list_url=f"{self._id}/_apis/git/repositories")
+        if not hasattr(self, "_repositories"):
+            self._repositories = self._entities(
+                entity_class=Repository,
+                key_name="id",
+                list_url=f"{self._id}/_apis/git/repositories")
+        return self._repositories
+
+    def __getitem__(self, key: str) -> Repository:
+        for repo in self.repositories:
+            if repo.id == key or repo.name == key:
+                return repo
+        raise KeyError(f"Repository with ID or name '{key}' not found.")
 
 @auto_properties({
     "name": "name",
@@ -209,16 +218,23 @@ class Repository(DevOps):
 
     @property
     def items(self):
-        # GET https://dev.azure.com/{organization}/{project}/_apis/git/repositories/{repositoryId}/items?api-version=7.1
-        return self._entities(
-            entity_class=Item,
-            key_name="path",
-            list_url=f"{self._project.id}/_apis/git/repositories/{self._id}/items",
-            params={
-                "scopePath": "/",
-                "recursionLevel": "oneLevel"
-            }
-        )
+        if not hasattr(self, "_items"):
+            self._items = self._entities(
+                entity_class=Item,
+                key_name="path",
+                list_url=f"{self._project.id}/_apis/git/repositories/{self._id}/items",
+                params={
+                    "scopePath": "/",
+                    "recursionLevel": "oneLevel"
+                }
+            )
+        return self._items
+
+    def __getitem__(self, key: str) -> Item:
+        for item in self.items:
+            if item.path == key:
+                return item
+        raise KeyError(f"Item with path '{key}' not found.")
 
 @auto_properties({
     "object_id":       "objectId",