human
Complete the below
def _validator(validator):

    ''''Validator that tis tightly coupled to the implementation
    of the classes here.
    This expects that the object has a ._tls property which
    is of type _DictStack.'
    '''

Can you provide a the Python program you requested?
assistant
#Here is the Python program you requested.
    name = validator.__name__
    doc = validator.__doc__
    def fget(self):
        return self._tls[name]
    def fset(self, val):
        self._tls[name] = validator(self, val)
    def fdel(self):
        self._tls._current.pop(name, None)
    return property(fget, fset, fdel, doc)