public function setIndex($index) {
        if (is_array($index))
            $index = implode(",", array_filter($index));
        $this->index = $index;
        $this->transport->setIndex($index);
        return $this;
    }
public function setIndex($index) {
        if (is_array($index))
            $index = implode(",", array_filter($index));
        $this->index = $index;
        $this->transport->setIndex($index);
        return $this;
    }
public function setIndex ( $ index ) { if ( is_array ( $ index ) ) $ index = implode ( "," , array_filter ( $ index ) ) ; $ this -> index = $ index ; $ this -> transport -> setIndex ( $ index ) ; return $ this ; }
Change what index to go against
@return \ElasticSearch\Client
@param mixed $index
Change what index to go against