Sometimes, answers don't have a result

mw40v.py

@@ -25,7 +25,10 @@ class Mw40V:
             headers=self.headers(method)
         )
 
-        return r.json()['result']
+        if 'result' in r.json():
+            return r.json()['result']
+        else:
+            return True
 
     def headers(self, method):
         return {