code: def __len__(self):
      return len(self.data_dict["words"])
  
file_path: DeepKE/src/deepke/relation_extraction/multimodal/modules/dataset.py
imports: import random
  import os
  import torch
  import json
  import ast
  from PIL import Image
  from torch.utils.data import Dataset
  from transformers import BertTokenizer, CLIPProcessor
  import logging
label_desc: Use image node_id 2 for calling the MMREDataset obj's underlying member method code with example usage: obj.__len__() and returns: len