adding tag drop out option

    def create_text(self, filename_text):

        text = random.choice(self.lines)

        text = text.replace("[name]", self.placeholder_token)

        if shared.opts.shuffle_tags:

        tags = filename_text.split(',')

        if shared.opt.tag_drop_out != 0:

            tags = [t for t in tags if random.random() > shared.opt.tag_drop_out]

        if shared.opts.shuffle_tags:

            random.shuffle(tags)

        text = text.replace("[filewords]", ','.join(tags))

        else:

            text = text.replace("[filewords]", filename_text)

        return text

    def __len__(self):