public function unsetContactId()
    {
        $this->clear(self::MTC_ID);

        if ($sessionId = $this->getSessionId()) {
            $this->clear($sessionId);
        }

        return $this;
    }
public function unsetContactId()
    {
        $this->clear(self::MTC_ID);

        if ($sessionId = $this->getSessionId()) {
            $this->clear($sessionId);
        }

        return $this;
    }
public function unsetContactId ( ) { $ this -> clear ( self :: MTC_ID ) ; if ( $ sessionId = $ this -> getSessionId ( ) ) { $ this -> clear ( $ sessionId ) ; } return $ this ; }
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@return Cookie
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