code: def verify(self, checksum, *, token=None):
          
          params = {'a': 'verify', 'checksum': checksum}
          if token:
              params['token'] = token
          # Needed so that we get output in xml, as opposed to
          # plain text. It doesn't actually matter what the
          # q param is, it's just important that it's not empty.
          @api_query('i_need_the_output_in_xml', **params)
          async def result(self, root):
              return bool(int(root.find('VERIFY').text))
          return result(self)
docs: Interface to the `NationStates Verification API
          <https://www.nationstates.net/pages/api.html#verification>`_.
  
          Parameters
          ----------
          checksum : str
              The user-supplied verification code.  Expires if the nation
              logs out, if it performs a significant in-game action such
              as moving regions or endorsing another nation, and after it
              is successfully verified.
          token : str
              A token specific to your service and the nation being verified.
  
          Returns
          -------
          an :class:`ApiQuery` of bool