@extensionmethod(Observable)
def concat_all(self):

    return self.merge(1)
Wraps db.Model._populate_internal_entity() and injects
dataset/ETHPy150Open ReactiveX/RxPY/rx/linq/observable/concat.py/concat_all--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/search/__init__.py/SearchableModel._populate_internal_entity