diff --git a/tools/python/jwutils/algo/ShuntingYard.py b/tools/python/jwutils/algo/ShuntingYard.py
index 598ea94..6c4b8cb 100644
--- a/tools/python/jwutils/algo/ShuntingYard.py
+++ b/tools/python/jwutils/algo/ShuntingYard.py
@@ -57,6 +57,9 @@ class ShuntingYard(object): # export
             if len(msg):
                 print(msg[1:])
 
+    def operator(self, key: str) -> Operator:
+        return self.__ops[key]
+
     def token_string(self):
         r = ""
         for k in sorted(self.__ops):