namespace System
{
    [DefaultMember("Chars")]
    public sealed class String : IEnumerable, IEnumerable<char>, ICloneable, IComparable, IComparable<string?>, IConvertible, IEquatable<string?>, IParsable<string!>, ISpanParsable<string!>
    {
        public static string! Format(IFormatProvider? provider, CompositeFormat! format, params object?[]! args);
    }
}