public function readEdiDataValueReq($filter, int $l1, $l2 = false): string
    {
        return $this->readEdiDataValue($filter, $l1, $l2, true);
    }
public function readEdiDataValueReq($filter, int $l1, $l2 = false): string
    {
        return $this->readEdiDataValue($filter, $l1, $l2, true);
    }
public function readEdiDataValueReq ( $ filter , int $ l1 , $ l2 = false ) : string { return $ this -> readEdiDataValue ( $ filter , $ l1 , $ l2 , true ) ; }
read required value. if no found, registered error

@param string|array $filter segment filter by segment name and values
@param int          $l1
@param int|false    $l2

@return string
read required value . if no found registered error