code: def verify_signature(self, data):
          '''Verify sealed data signature'''
  
          data = self._remove_magic(data)
          data = urlsafe_nopadding_b64decode(data)
          options = self._read_header(data)
          data = self._add_magic(data)
          self._unsign_data(data, optionsf verify_signature(self, data):
          '''Verify sealed data signature'''
  
          data = self._remove_magic(data)
          data = urlsafe_nopadding_b64decode(data)
          options = self._read_header(data)
          data = self._add_magic(data)
          self._unsign_data(data, options)
docs: Verify sealed data signature