code: func (c *simpleCollectionStore) RetrieveCollectionPersistenceConfigs(cc common.CollectionCriteria) (CollectionPersistenceConfigs, error) {
  	staticCollectionConfig, err := c.retrieveCollectionConfig(cc, nil)
  	if err != nil {
  		return nil, err
  	}
  	return &SimpleCollectionPersistenceConfigs{staticCollectionConfig.BlockToLive}, nil
  }
docs: // RetrieveCollectionPersistenceConfigs retrieves the collection's persistence related configurations