def add_handler(self, cls):
        if not cls in self.handlers:
            self.handlers.append(cls)
Specialize val_doc to a C{GenericValueDoc} and return it.
dataset/ETHPy150Open kivy/kivy/kivy/base.py/ExceptionManagerBase.add_handler--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/epydoc/docintrospecter.py/introspect_other