Classes/Connector.php
public static function setCustomOpenGraphTag($key, $value)
    {
        $key   = (string)$key;
        $value = (string)$value;

        self::$store['flag']['custom:og:external'] = true;
        self::$store['custom:og'][$key] = $value;
    }
public static function setCustomOpenGraphTag($key, $value)
    {
        $key   = (string)$key;
        $value = (string)$value;

        self::$store['flag']['custom:og:external'] = true;
        self::$store['custom:og'][$key] = $value;
    }
public static function setCustomOpenGraphTag ( $ key , $ value ) { $ key = ( string ) $ key ; $ value = ( string ) $ value ; self :: $ store [ 'flag' ] [ 'custom:og:external' ] = true ; self :: $ store [ 'custom:og' ] [ $ key ] = $ value ; }
Set custom opengraph tag

@param   string $key   Metatag name
@param   string $value Metatag value
Set custom opengraph tag