code: func (l *Ledis) LoadDumpFile(path string) (*DumpHead, error) {
  	f, err := os.Open(path)
  	if err != nil {
  		return nil, err
  	}
  	defer f.Close()
  
  	return l.LoadDump(f)
  }
docs: // LoadDumpFile clears all data and loads dump file to db