def get_classes(self):
    if (self.classes is None):
        self.classes = list()
        class_defs = self.get_class_defs()
        for class_def in class_defs:
            dex_class = DexClass(self, class_def)
            self.classes.append(dex_class)
        self.data.pop_offset_and_seek()
    return self.classes
def get_classes(self):
    if (self.classes is None):
        self.classes = list()
        class_defs = self.get_class_defs()
        for class_def in class_defs:
            dex_class = DexClass(self, class_def)
            self.classes.append(dex_class)
        self.data.pop_offset_and_seek()
    return self.classes