def is_with_published_event(self): return LectureConditions.is_with_published_event(model_instance=self)
def is_published(self): return LectureConditions.is_published(model_instance=self)
def is_with_video(self): return LectureConditions.is_with_video(model_instance=self)
def filter_by_published(self): return self.filter(LectureConditions.is_published())
def filter_by_with_published_event(self): return self.filter(LectureConditions.is_with_published_event())
def filter_by_with_video(self): return self.filter(LectureConditions.is_with_video())