title: Googletrans API Error 'NoneType' object has no attribute 'group'
body: <p>I use googletrans API every day,
  but unfortunately, I got this error code today.</p>
  <p>Is google updating the API?
  Please help me with this problem.</p>
  <pre><code>~\AppData\Local\Programs\Python\Python38-32\lib\site-packages\googletrans\client.py in translate(self, text, dest, src, **kwargs)
      180 
      181         origin = text
  --&gt; 182         data = self._translate(text, dest, src, kwargs)
      183 
      184         # this code will be updated when the format is changed.
  
  ~\AppData\Local\Programs\Python\Python38-32\lib\site-packages\googletrans\client.py in _translate(self, text, dest, src, override)
       76 
       77     def _translate(self, text, dest, src, override):
  ---&gt; 78         token = self.token_acquirer.do(text)
       79         params = utils.build_params(query=text, src=src, dest=dest,
       80                                     token=token, override=override)
  
  ~\AppData\Local\Programs\Python\Python38-32\lib\site-packages\googletrans\gtoken.py in do(self, text)
      192 
      193     def do(self, text):
  --&gt; 194         self._update()
      195         tk = self.acquire(text)
      196         return tk
  
  ~\AppData\Local\Programs\Python\Python38-32\lib\site-packages\googletrans\gtoken.py in _update(self)
       60 
       61         # this will be the same as python code after stripping out a reserved word 'var'
  ---&gt; 62         code = self.RE_TKK.search(r.text).group(1).replace('var ', '')
       63         # unescape special ascii characters such like a \x3d(=)
       64         code = code.encode().decode('unicode-escape')
  
  AttributeError: 'NoneType' object has no attribute 'group'
  </code></pre>