code: def _set_wait(self, request, validator_query):
          
          wait = request.url.query.get('wait', 'false')
          if wait.lower() != 'false':
              validator_query.wait = True
              try:
                  validator_query.timeout = int(wait)
              except ValueError:
                  # By default, waits for 95% of REST API's configured timeout
                  validator_query.timeout = int(self._timeout * 0.95)
docs: Parses the `wait` query parameter, and sets the corresponding
          `wait` and `timeout` properties in the validator query.