Doctrine\MongoDB\Query\Expr::lt PHP Method

    public function lt($value)
    {
        return $this->operator('$lt', $value);
    }

 /**
  * Specify $lt criteria for the current field.
  *
  * @see Expr::lte()
  * @see http://docs.mongodb.org/manual/reference/operator/lte/
  * @param mixed $value
  * @return self
  */
 public function lt($value)
 {
     $this->expr->lt($value);
     return $this;
 }