def app_context_processor(self, f):
        self._record(lambda s: s.app.template_context_processors
            .setdefault(None, []).append(f))
        return f
Like :meth:`Flask.context_processor` but for a module.  Such a
dataset/ETHPy150Open hhstore/flask-annotated/flask-0.5/flask/module.py/Module.app_context_processor