def pages(self):
        for p in self.declaration.pages():
            yield p.proxy.widget or None

    #--------------------------------------------------------------------------
    # Child Events
    #--------------------------------------------------------------------------
Asserts that a protocol buffer is initialized.
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_notebook.py/WxNotebook.pages--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/datastore/cloud_datastore_validator.py/_assert_initialized