--- a/mercurial/wireprotov1peer.py	Sun Jul 29 21:28:51 2018 +0900
+++ b/mercurial/wireprotov1peer.py	Wed Sep 12 19:14:28 2018 -0400
@@ -64,6 +64,7 @@
         encresref.set(self._submitone(cmd, encargsorres))
         return next(batchable)
     setattr(plain, 'batchable', f)
+    setattr(plain, '__name__', f.__name__)
     return plain
 
 class future(object):