code: def get_access_token(
          self, oauth_token, oauth_token_secret, oauth_verifier
      ):
          
          twitter = Twython(self.consumer_key,
                            self.consumer_secret,
                            oauth_token,
                            oauth_token_secret)
          access_token = twitter.get_authorized_tokens(oauth_verifier)
          return access_token
docs: :param oauth_token: oauth_token retrieve by the API Twython
          get_authentication_tokens()
          :param oauth_token_secret: oauth_token_secret retrieve by the
          API Twython get_authentication_tokens()
          :param oauth_verifier: oauth_verifier retrieve from Twitter
          :type oauth_token: string
          :type oauth_token_secret: string
          :type oauth_verifier: string
          :return: access_token
          :rtype: dict