code: func (db *DB) SearchID(id int64) (*Doc, error) {
  	var doc *Doc
  	err := db.store.Select(db.meta, &doc, `where "ID" = ?`, id)
  	if err != nil {
  		return nil, err
  	}
  	return doc, nil
  }
docs: // SearchID searches the database for the document with the given ID.