Minor tweaks to some annotations.

Author: Julian

referencing/_core.py

@@ -551,7 +551,7 @@ class Resolver(Generic[D]):
     additional subresources and adding them to a new registry.
     """
 
-    _base_uri: str = field(alias="base_uri")
+    _base_uri: URI = field(alias="base_uri")
     _registry: Registry[D] = field(alias="registry")
     _previous: List[URI] = field(default=List(), repr=False, alias="previous")
 
@@ -617,7 +617,7 @@ def dynamic_scope(self) -> Iterable[tuple[URI, Registry[D]]]:
         for uri in self._previous:
             yield uri, self._registry
 
-    def _evolve(self, base_uri: str, **kwargs: Any):
+    def _evolve(self, base_uri: URI, **kwargs: Any):
         """
         Evolve, appending to the dynamic scope.
         """

referencing/retrieval.py

@@ -38,11 +38,12 @@ def to_cached_resource(
     .. testcode::
 
         from referencing import Registry
+        from referencing.typing import URI
         import referencing.retrieval
 
 
         @referencing.retrieval.to_cached_resource()
-        def retrieve(uri: str):
+        def retrieve(uri: URI):
             print(f"Retrieved {uri}")
 
             # Normally, go get some expensive JSON from the network, a file ...

referencing/tests/test_core.py

@@ -819,7 +819,7 @@ def test_repeated_lookup_from_retrieved_resource(self):
         resource = Resource.opaque(contents={"foo": "baz"})
         once = [resource]
 
-        def retrieve(uri: str):
+        def retrieve(uri):
             return once.pop()
 
         resolver = Registry(retrieve=retrieve).resolver()
@@ -833,7 +833,7 @@ def test_repeated_anchor_lookup_from_retrieved_resource(self):
         resource = Resource.opaque(contents={"foo": "baz"})
         once = [resource]
 
-        def retrieve(uri: str):
+        def retrieve(uri):
             return once.pop()
 
         resolver = Registry(retrieve=retrieve).resolver()