Update test.py

test.py

@@ -201,7 +201,7 @@ class Test(datasets.GeneratorBasedBuilder):
         targets = (
             ["audio1", "audio2"] if self.config.name == "audio" else [self.config.name]
         )
-        def self_download_custom(self, url_or_urls, custom_download):
+        def self_download_custom(url_or_urls, custom_download):
                 nonlocal dl_manager
                 """
                 Download given urls(s) by calling `custom_download`.