code: func (d *Accessor) GetOCSP(serial, aki string) (ors []certdb.OCSPRecord, err error) {
  	err = d.checkDB()
  	if err != nil {
  		return nil, err
  	}
  
  	err = d.db.Select(&ors, fmt.Sprintf(d.db.Rebind(selectOCSPSQL), sqlstruct.Columns(certdb.OCSPRecord{})), serial, aki)
  	if err != nil {
  		return nil, wrapSQLError(err)
  	}
  
  	return ors, nil
  }
docs: // GetOCSP retrieves a certdb.OCSPRecord from db by serial.