code: def export_parallel_gateway_info(node_params, output_element):
          
          output_element.set(consts.Consts.gateway_direction, node_params[consts.Consts.gateway_direction])
docs: Adds parallel gateway node attributes to exported XML element
  
          :param node_params: dictionary with given parallel gateway parameters,
          :param output_element: object representing BPMN XML 'parallelGateway' element.