change default response dict

src/serve.py

@@ -31,6 +31,8 @@ def make_callback(analysis_endpoint):
         operations = message.get("operations", ["/"])
         results = map(perform_operation, operations)
         result = dict(zip(operations, results))
+        if list(result.keys()) == ["/"]:
+            result = list(result.values())[0]
         return result
 
     return callback