[arcpublishing] add missing staticmethod decorator

diff --git a/youtube_dl/extractor/arcpublishing.py b/youtube_dl/extractor/arcpublishing.py
index d1fb1a0541d9ce45f1fa751ac0de2652e7037217..ca6a6c4d87f9f13a259f8402f5e7ef51ad097088 100644 (file)
--- a/youtube_dl/extractor/arcpublishing.py
+++ b/youtube_dl/extractor/arcpublishing.py
@@ -73,6 +73,7 @@ class ArcPublishingIE(InfoExtractor):
         ], 'video-api-cdn.%s.arcpublishing.com/api'),
     ]
 
+    @staticmethod
     def _extract_urls(webpage):
         entries = []
         # https://arcpublishing.atlassian.net/wiki/spaces/POWA/overview