fixup! ENH: Add clients for accessing AWS data

src/metpy/remote/aws.py

@@ -88,7 +88,7 @@ def date_iterator(start, end, **step_kw):
         Start date/time for iteration.
     end : datetime.datetime
         End date/time for iteration.
-    step_kw : dict
+    step_kw :
         Keyword arguments to pass to `datetime.timedelta` to control step size.
 
     """