def __init__()

in low_shot.py [0:0]


    def __init__(self, file_handle, base_classes, novel_classes, novel_idx, max_per_label=0, generator_fn=None, generator=None):
        self.f = file_handle
        self.all_feats_dset = self.f['all_feats']
        all_labels_dset = self.f['all_labels']
        self.all_labels = all_labels_dset[...]

        #base class examples
        self.base_class_ids = np.where(np.in1d(self.all_labels, base_classes))[0]
        total = self.f['count'][0]
        self.base_class_ids = self.base_class_ids[self.base_class_ids<total]


        # novel class examples
        novel_feats = self.all_feats_dset[novel_idx,:]
        novel_labels = self.all_labels[novel_idx]

        # hallucinate if needed
        if max_per_label>0:
            novel_feats, novel_labels = generator_fn(novel_feats, novel_labels, generator, max_per_label)
        self.novel_feats = novel_feats
        self.novel_labels = novel_labels


        self.base_classes = base_classes
        self.novel_classes = novel_classes
        self.frac = float(len(base_classes)) / float(len(novel_classes)+len(base_classes))
        self.all_classes = np.concatenate((base_classes, novel_classes))