def __init__(self, augmentors):
        """
        Args:
            augmentors (list): list of :class:`ImageAugmentor` instance to be applied.
        """
        assert isinstance(augmentors, (list, tuple)), augmentors
        self.augmentors = augmentors
        super(AugmentorList, self).__init__()

        Args:
            augmentors (list): list of :class:`ImageAugmentor` instance to be applied.
        
tensorpack/dataflow/imgaug/base.py