code: func LoGet(db XODB, v0 pgtypes.Oid, v1 pgtypes.Oid, v2 int64, v3 int) ([]byte, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT pg_catalog.lo_get($1, $2, $3, $4)`
  
  	// run query
  	var ret []byte
  	XOLog(sqlstr, v0, v1, v2, v3)
  	err = db.QueryRow(sqlstr, v0, v1, v2, v3).Scan(&ret)
  	if err != nil {
  		return nil, err
  	}
  
  	return ret, nil
  }
docs: // LoGet calls the stored procedure 'pg_catalog.lo_get(oid, oid, bigint, integer) bytea' on db.