presto-parser/src/main/java/io/prestosql/sql/tree/ShowGrants.java/ShowGrants/ShowGrants
class ShowGrants:    public ShowGrants(Optional<NodeLocation> location, boolean table, Optional<QualifiedName> tableName)
    {
        super(location);
        requireNonNull(tableName, "tableName is null");

        this.table = table;
        this.tableName = tableName;
    }