// Extend Plastic Builder to Support Nesting Queries
\Sleimanx2\Plastic\DSL\SearchBuilder::macro('nest', function (\Closure $closure) {
     $builder = new self($this->connection, new $this->query());

     $closure($builder);

     $query = $builder->query->getQueries();

     $this->append($query);

     return $this;
});