LMongo\Eloquent\Builder::update PHP Method

    public function update(array $values)
    {
        return $this->query->update($this->addUpdatedAtColumn($values));
    }

 /**
  * Run a raw update against the base query.
  *
  * @param  array  $attributes
  * @return int
  */
 public function rawUpdate(array $attributes = array())
 {
     return $this->query->update($attributes);
 }