code: func (o *Generator) BulkV4(amount int) []UUID {
  	ids := make([]UUID, amount)
  	o.ReadV4(ids)
  	return ids
  }
docs: // BulkV4 will return a slice of V4 UUIDs. Be careful with the set amount.
  // Note: V4 UUIDs require sufficient entropy from the generator.
  // If n == len(ids) err will be nil.