diff --git a/mercurial/interfaces/repository.py b/mercurial/interfaces/repository.py
--- a/mercurial/interfaces/repository.py
+++ b/mercurial/interfaces/repository.py
@@ -1532,7 +1532,7 @@ class imanifestlog(interfaceutil.Interfa
         TODO formalize interface for returned object.
         """
 
-    def clearcaches():
+    def clearcaches(clear_persisted_data: bool = False) -> None:
         """Clear caches associated with this collection."""
 
     def rev(node):
diff --git a/mercurial/manifest.py b/mercurial/manifest.py
--- a/mercurial/manifest.py
+++ b/mercurial/manifest.py
@@ -1793,7 +1793,7 @@ class ManifestRevlog:
     def fulltextcache(self):
         return self._fulltextcache
 
-    def clearcaches(self, clear_persisted_data=False):
+    def clearcaches(self, clear_persisted_data: bool = False) -> None:
         self._revlog.clearcaches()
         self._fulltextcache.clear(clear_persisted_data=clear_persisted_data)
         self._dirlogcache = {self.tree: self}
diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -1866,7 +1866,7 @@ class revlog:
             else:
                 nodemaputil.setup_persistent_nodemap(transaction, self)
 
-    def clearcaches(self):
+    def clearcaches(self, clear_persisted_data: bool = False) -> None:
         """Clear in-memory caches"""
         self._chainbasecache.clear()
         self._inner.clear_cache()