--- a/service/collector/stubs/rdflib/__init__.pyi	Thu Apr 18 22:00:06 2019 -0700
+++ b/service/collector/stubs/rdflib/__init__.pyi	Fri Apr 19 01:07:29 2019 -0700
@@ -1,9 +1,22 @@
 # Stubs for rdflib (Python 3.4)
 #
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
+from typing import Tuple, Union
 
-from rdflib.term import URIRef, BNode, Literal, Variable
-from rdflib.namespace import Namespace
-from rdflib.graph import  Dataset, Graph, ConjunctiveGraph
+
 from rdflib.namespace import RDF, RDFS, OWL, XSD
 
+# this is the 1st way that worked. 'from rdflib.term import URIRef' did not work.
+import rdflib.namespace as _n
+Namespace = _n.Namespace
+
+import rdflib.term as _t
+URIRef = _t.URIRef
+Literal = _t.Literal
+BNode = _t.BNode
+
+import rdflib.graph as _g
+ConjunctiveGraph = _g.ConjunctiveGraph
+Graph = _g.Graph
+
+# not part of rdflib
+StatementType = Tuple[Union[URIRef, BNode], URIRef, _t.Node, URIRef]