/**
* Add a union statement to the query.
*
* @param \Illuminate\Database\Query\Builder|\Closure $query
* @param bool $all
* @return \Illuminate\Database\Query\Builder|static
* @static
*/
public static function union($query, $all = false)
{
//Method inherited from \Illuminate\Database\Query\Builder
return \October\Rain\Database\QueryBuilder::union($query, $all);
}