Initialize ExternalNode properties (#687)

Kevin Morey · hmstepanek · web-flow · commit 1bb2be495bad · 2022-11-14T12:19:00.000-08:00
Co-authored-by: Hannah Stepanek &lt;hstepanek@newrelic.com&gt;
diff --git a/newrelic/core/external_node.py b/newrelic/core/external_node.py
@@ -32,6 +32,8 @@
 
 
 class ExternalNode(_ExternalNode, GenericNodeMixin):
+    cross_process_id = None
+    external_txn_name = None
 
     @property
     def details(self):
