def create(): return Observable.switch_case(lambda: 1, map, scheduler=scheduler)
def create(): def selector(): raise Exception(ex) return Observable.switch_case(selector, map, zs)
def create(): return Observable.switch_case(lambda: 3, map, zs)
def create(): def selector(): raise Exception(ex) return Observable.switch_case(selector, map, scheduler=scheduler)
def create(): return Observable.switch_case(lambda: 3, map, scheduler=scheduler)