def get_file(self):
        raise NotImplementedError()
Reads the folders of a given directory, which are used to display some
dataset/ETHPy150Open benoitbryon/django-downloadview/django_downloadview/views/base.py/DownloadMixin.get_file--crossover with--dataset/ETHPy150Open bytefish/facerec/py/apps/videofacerec/simple_videofacerec.py/read_subject_names