diff --git a/script/local.py b/script/local.py
index d8a41ff..2b49049 100644
--- a/script/local.py
+++ b/script/local.py
@@ -61,4 +61,7 @@ def fit(ydata, xdata = None):
 
 
 def rock(axis = th1):
+    """
+    TODO
+    """
     run("rock", {"rock_axis":th1})
\ No newline at end of file