protected function getSigningKeys() {
        if (!$this->_signingKeys) {
            $this->_signingKeys = new SigningKeyList($this->version, $this->solution['sid']);
        }

        return $this->_signingKeys;
    }
protected function getSigningKeys() {
        if (!$this->_signingKeys) {
            $this->_signingKeys = new SigningKeyList($this->version, $this->solution['sid']);
        }

        return $this->_signingKeys;
    }
protected function getSigningKeys ( ) { if ( ! $ this -> _signingKeys ) { $ this -> _signingKeys = new SigningKeyList ( $ this -> version , $ this -> solution [ 'sid' ] ) ; } return $ this -> _signingKeys ; }
Access the signingKeys

@return \Twilio\Rest\Api\V2010\Account\SigningKeyList
Access the signingKeys