code: func (p *Partition) MeasurementHasSeries(name []byte) (bool, error) {
  	fs, err := p.RetainFileSet()
  	if err != nil {
  		return false, err
  	}
  	defer fs.Release()
  
  	for _, f := range fs.files {
  		if f.MeasurementHasSeries(p.seriesIDSet, name) {
  			return true, nil
  		}
  	}
  
  	return false, nil
  }
docs: // MeasurementHasSeries returns true if a measurement has at least one non-tombstoned series.