Bug fix from get_files method.

Author: chickenchickenlove

centraldogma/content_service.py

@@ -56,9 +56,11 @@ def get_files(
                 path += "/" + path_pattern
 
         handler = {
-            HTTPStatus.OK: lambda resp: [
-                Content.from_dict(content) for content in resp.json()
-            ],
+            HTTPStatus.OK: lambda resp: (lambda data: [
+                Content.from_dict(content) for content in data
+            ] if isinstance(data, list) else [
+                Content.from_dict(data)
+            ])(resp.json()),
             HTTPStatus.NO_CONTENT: lambda resp: [],
         }
         return self.client.request("get", path, params=params, handler=handler)