Sphinxify my_validators.py.

modules/my_validators.py

-""" custom validators and correctors.
-
-@author: R. Le Gac
+""" Custom validators.
 
 """
-
 from gluon.validators import IS_IN_SET
 
 
 class IS_IN_USET(IS_IN_SET):
     """IS_IN_SET validator but working with unicode string.
 
+        Args:
+            theset (list or tuple or dict):
+                the reference set containing utf-8 strings.
+
+        Keyword Args:
+            **kwargs (dict):
+                the keyword arguments of the validator ``IS_IN_SET``.
+
     """
     def __init__(self, theset, **kwargs):