From 1b79d79801017a18ee2a29aa5d691911361f297e Mon Sep 17 00:00:00 2001
From: Eric Larson <larson.eric.d@gmail.com>
Date: Mon, 4 Mar 2019 16:34:04 -0500
Subject: BUG: Allow an argument

---
 src/decorator.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/decorator.py b/src/decorator.py
index 567030e..56068e9 100644
--- a/src/decorator.py
+++ b/src/decorator.py
@@ -69,7 +69,7 @@ try:
     from inspect import isgeneratorfunction
 except ImportError:
     # assume no generator function in old Python versions
-    def isgeneratorfunction():
+    def isgeneratorfunction(caller):
         return False
 
 
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