code: func (b *bruteRanger) ContainingNetworks(ip net.IP) ([]RangerEntry, error) {
  	entries, err := b.getEntriesByVersion(ip)
  	if err != nil {
  		return nil, err
  	}
  	results := []RangerEntry{}
  	for _, entry := range entries {
  		network := entry.Network()
  		if network.Contains(ip) {
  			results = append(results, entry)
  		}
  	}
  	return results, nil
  }
docs: // ContainingNetworks returns all RangerEntry(s) that given ip contained in.