Conditional Resource/Navigation Label

Is there anyway I could make this work?

Solution

use the function and remove the prop '$label'

public static function getLabel(): ?string
    {
        return self::$label;
    }

public static function getLabel(): ?string
    {
        return self::$label;
    }

public static function getLabel(): ?string
    {
        return self::$label;
    }

public static function getLabel(): ?string
    {
        return self::$label;
    }