code: def test_reset_vector_cache_1(self):
      mf = MatchingField()
      reset_vector_cache()
      self.assertDictEqual(mf._cached_vec_data, {})
  
imports: import os
  import shutil
  import unittest
  from collections import Counter
  from test import test_dir_path
  from nose.tools import *
  import torch
  from deepmatcher.data.dataset import MatchingDataset
  from deepmatcher.data.field import FastText, FastTextBinary, MatchingField, MatchingVocab, reset_vector_cache
  from torchtext.vocab import Vectors
  from urllib.parse import urljoin
  from urllib.request import pathname2url
label_desc: Use image node_id 1 for calling the TestResetVectorCache obj's underlying member method code with example usage: obj.test_reset_vector_cache_1() without return types