diff --git a/rclone_python/utils.py b/rclone_python/utils.py
index 5b63252..f53f8f6 100644
--- a/rclone_python/utils.py
+++ b/rclone_python/utils.py
@@ -112,6 +112,17 @@ def rclone_progress(
 
 
 def extract_rclone_progress(line: str) -> Tuple[bool, Union[Dict[str, Any], None]]:
+    """Extracts and returns the progress updates from the rclone transfer operation.
+    The returned Dictionary includes the original rclone stats output inside of "rclone_output".
+    All file sizes and speeds are give in bytes.
+
+    Args:
+        line (str): One output line of the rclone transfer operation with the --use-json-log flag enabled.
+
+    Returns:
+        Tuple[bool, Union[Dict[str, Any], None]]: The retrieved update Dictionary.
+    """
+
     try:
         stats: Dict = json.loads(line).get("stats", None)
     except ValueError: