presto-parser/src/main/java/io/prestosql/sql/tree/Grant.java/Grant/toString
class Grant:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("privileges", privileges)
                .add("table", table)
                .add("tableName", tableName)
                .add("grantee", grantee)
                .add("withGrantOption", withGrantOption)
                .toString();
    }