--- a/tests/test-wireproto.py	Tue Aug 24 17:27:16 2021 +0200
+++ b/tests/test-wireproto.py	Tue Aug 24 17:27:16 2021 +0200
@@ -75,9 +75,7 @@
 
     @wireprotov1peer.batchable
     def greet(self, name):
-        f = wireprotov1peer.future()
-        yield {b'name': mangle(name)}, f
-        yield unmangle(f.value)
+        return {b'name': mangle(name)}, unmangle
 
 
 class serverrepo(object):