Li3 Map reduce exemple

li3_map_reduce.php

<?php
       
$db = Model::connection();
       
// construct map and reduce functions
$map = new \MongoCode("function() {}");
$reduce = new \MongoCode("function(k, vals) {}");
   
$metrics = $db->connection->command(array(
   'mapreduce' => 'collection', 
   'map' => $map,
   'reduce' => $reduce,
   'out' => array()
));

?>

need to wrap that into a MongoDB finder that automatically takes care of the MongoCode() bits