code: func (log *Log) Get(i int64) (*Graph, int64, error) {
  
  	/* Position in file */
  	_, err := log.f.Seek(i, 0)
  	if err != nil {
  		return nil, -1, err
  	}
  
  	p := newBinParser(log.f)
  	g := p.parse()
  
  	if p.n == 0 {
  		return g, -1, nil
  	}
  
  	return g, i + int64(p.n), err
  }
docs: // Get returns the OGDL object at the position given and the position of the
  // next object, or an error.