--- a/collector.py	Tue Mar 29 21:44:04 2022 -0700
+++ b/collector.py	Tue Mar 29 22:02:25 2022 -0700
@@ -23,12 +23,13 @@
 from prometheus_client.registry import REGISTRY
 from rdfdb.patch import Patch
 from rdflib import Namespace,  URIRef
-from rdflib.term import Node, Statement
+from rdflib.term import Node
 from standardservice.logsetup import enableTwistedLog, log
 from twisted.internet import defer, reactor
 
 from collector_config import config
 
+Statement = Tuple[Node, Node, Node, Node]
 
 #SourceUri = NewType('SourceUri', URIRef) # doesn't work
 class SourceUri(URIRef):