code: func (c *Console) Buckets() stringset.Set {
  	buckets := stringset.New(1)
  	for _, id := range c.Builders {
  		if bucket := extractBucket(id); bucket != "" {
  			buckets.Add(bucket)
  		}
  	}
  	return buckets
  }
docs: // Buckets returns all buckets referenced by this Console's Builders.