code: func NewIndicesRolloverService(client *Client) *IndicesRolloverService {
  	return &IndicesRolloverService{
  		client:     client,
  		conditions: make(map[string]interface{}),
  		settings:   make(map[string]interface{}),
  		mappings:   make(map[string]interface{}),
  	}
  }
docs: // NewIndicesRolloverService creates a new IndicesRolloverService.