code: def is_ok(self):
      return hasattr(self, "k")
  
imports: import logging
  import pickle
  import re
  import shutil
  import sqlite3
  from pathlib import Path
  from typing import Union
  import numpy
  import torch
  from tqdm import tqdm
  import flair
  from flair.embeddings import WordEmbeddings
label_desc: Use image node_id 2 for calling the WordEmbeddingsStoreBackend obj's underlying member method code with example usage: obj.is_ok() and returns: hasattr