public function getUnregisteredDeviceTokens(array $devices_token)
    {
        $tokens = [];

        if (!empty($this->feedback->tokenFailList)) {
            $tokens = $this->feedback->tokenFailList;
        }
        if (!empty($this->feedback->apnsFeedback)) {
            $tokens = array_merge($tokens, array_pluck($this->feedback->apnsFeedback, 'devtoken'));
        }

        return $tokens;
    }
public function getUnregisteredDeviceTokens(array $devices_token)
    {
        $tokens = [];

        if (!empty($this->feedback->tokenFailList)) {
            $tokens = $this->feedback->tokenFailList;
        }
        if (!empty($this->feedback->apnsFeedback)) {
            $tokens = array_merge($tokens, array_pluck($this->feedback->apnsFeedback, 'devtoken'));
        }

        return $tokens;
    }
public function getUnregisteredDeviceTokens ( array $ devices_token ) { $ tokens = [ ] ; if ( ! empty ( $ this -> feedback -> tokenFailList ) ) { $ tokens = $ this -> feedback -> tokenFailList ; } if ( ! empty ( $ this -> feedback -> apnsFeedback ) ) { $ tokens = array_merge ( $ tokens , array_pluck ( $ this -> feedback -> apnsFeedback , 'devtoken' ) ) ; } return $ tokens ; }
Provide the unregistered tokens of the notification sent.

@param array $devices_token
@return array
Provide the unregistered tokens of the notification sent .