diff --git a/digitalpy/core/zmanager/impl/default_request.py b/digitalpy/core/zmanager/impl/default_request.py
index bb8c47fb..d52c7e8a 100644
--- a/digitalpy/core/zmanager/impl/default_request.py
+++ b/digitalpy/core/zmanager/impl/default_request.py
@@ -48,4 +48,13 @@ def get_method(self) -> str:
         return self.method
 
     def set_format(self, format_: str):
-        self.format = format_
\ No newline at end of file
+        """Set the serialization format for this request.
+
+        Args:
+            format_ (str): The format name to assign.
+
+        Returns:
+            None
+        """
+        self.format = format_
+        return None