/**
* Multiply the current field.
*
* If the field does not exist, it will be set to 0.
*
* @see Expr::mul()
* @see http://docs.mongodb.org/manual/reference/operator/mul/
* @param float|integer $value
* @return self
*/
public function mul($value)
{
$this->expr->mul($value);
return $this;
}
