Continue the PR #1899 (#2386)

* A property to access the `assets` field of release (#1898)

... in order to avoid extra requests.

<https://github.com/PyGithub/PyGithub/issues/1898>

* Remove comment to comply the review

* Add tests for GitRelease.assets

---------

Co-authored-by: green-green-avk <45503261+green-green-avk@users.noreply.github.com>

github/GitRelease.py

@@ -170,6 +170,14 @@ class GitRelease(github.GithubObject.CompletableGithubObject):
         self._completeIfNotSet(self._zipball_url)
         return self._zipball_url.value
 
+    @property
+    def assets(self):
+        """
+        :type: list of :class:`github.GitReleaseAsset.GitReleaseAsset`
+        """
+        self._completeIfNotSet(self._assets)
+        return self._assets.value
+
     def delete_release(self):
         """
         :calls: `DELETE /repos/{owner}/{repo}/releases/{release_id} <https://docs.github.com/en/rest/reference/repos#delete-a-release>`_
@@ -333,6 +341,7 @@ class GitRelease(github.GithubObject.CompletableGithubObject):
         self._published_at = github.GithubObject.NotSet
         self._tarball_url = github.GithubObject.NotSet
         self._zipball_url = github.GithubObject.NotSet
+        self._assets = github.GithubObject.NotSet
 
     def _useAttributes(self, attributes):
         if "id" in attributes:
@@ -369,3 +378,7 @@ class GitRelease(github.GithubObject.CompletableGithubObject):
             self._tarball_url = self._makeStringAttribute(attributes["tarball_url"])
         if "zipball_url" in attributes:
             self._zipball_url = self._makeStringAttribute(attributes["zipball_url"])
+        if "assets" in attributes:
+            self._assets = self._makeListOfClassesAttribute(
+                github.GitReleaseAsset.GitReleaseAsset, attributes["assets"]
+            )

github/GitRelease.pyi

@@ -11,6 +11,8 @@ class GitRelease(CompletableGithubObject):
     def _initAttributes(self) -> None: ...
     def _useAttributes(self, attributes: Dict[str, Any]) -> None: ...
     @property
+    def assets(self) -> list[GitReleaseAsset]: ...
+    @property
     def author(self) -> NamedUser: ...
     @property
     def body(self) -> str: ...

tests/GitRelease.py

@@ -156,6 +156,12 @@ class GitRelease(Framework.TestCase):
             ),
         )
         self.assertEqual(repr(release), 'GitRelease(title="Test")')
+        self.assertEqual(len(release.assets), 1)
+        self.assertEqual(
+            repr(release.assets[0]),
+            'GitReleaseAsset(url="https://api.github.com/repos/'
+            f'{user}/{repo_name}/releases/assets/{release.raw_data["assets"][0]["id"]}")',
+        )
 
     def testGetRelease(self):
         release_by_id = self.release