public function getLeadByFilterType($filterType, $filterValue, $fields = array(), $returnRaw = false)
    {
        $args['filterType'] = $filterType;
        $args['filterValues'] = $filterValue;

        if (count($fields)) {
            $args['fields'] = implode(',', $fields);
        }

        return $this->getResult('getLeadByFilterType', $args, false, $returnRaw);
    }