code: def set_stable_spot_instance_settings(self, maximum_bid_price_percentage=None,
                                            timeout_for_request=None,
                                            allow_fallback=True):
          
          self.hadoop_settings['stable_spot_instance_settings'] = {
                 'maximum_bid_price_percentage': maximum_bid_price_percentage,
                 'timeout_for_request': timeout_for_request,
                 'allow_fallback': allow_fallback}
docs: Purchase options for stable spot instances.
  
          `maximum_bid_price_percentage`: Maximum value to bid for stable node spot
              instances, expressed as a percentage of the base price
              (applies to both master and slave nodes).
  
          `timeout_for_request`: Timeout for a stable node spot instance request (Unit:
              minutes)
  
          `allow_fallback`: Whether to fallback to on-demand instances for
              stable nodes if spot instances are not available