diff --git a/vizier/client/client_abc.py b/vizier/client/client_abc.py
index 5d2c03365..985f15eae 100644
--- a/vizier/client/client_abc.py
+++ b/vizier/client/client_abc.py
@@ -212,6 +212,8 @@ def suggest(
     Returns:
       Trials.
     """
+    # TODO: Add `parameters` argument. This will allow
+    # `suggest` to be used with context.
 
   # TODO: Request does not play well with boolean or discrete
   # integer parameters.