1 files changed, 3 insertions, 3 deletions
diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py
index ab1082d83be..cd7f5d63c81 100644
--- a/Lib/importlib/_bootstrap.py
+++ b/Lib/importlib/_bootstrap.py
@@ -346,8 +346,8 @@ class _LoaderBasics:
 class SourceLoader(_LoaderBasics):
 
     def path_mtime(self, path):
-        """Optional method that returns the modification time for the specified
-        path.
+        """Optional method that returns the modification time (an int) for the
+        specified path, where path is a str.
 
         Implementing this method allows the loader to read bytecode files.
 
@@ -355,7 +355,7 @@ class SourceLoader(_LoaderBasics):
         raise NotImplementedError
 
     def set_data(self, path, data):
-        """Optional method which writes data to a file path.
+        """Optional method which writes data (bytes) to a file path (a str).
 
         Implementing this method allows for the writing of bytecode files.