namespace System
{
    public readonly struct Int16 : IComparable, IComparable<short>, IConvertible, IEquatable<short>, IFormattable, IParsable<short>, ISpanFormattable, ISpanParsable<short>, IUtf8SpanFormattable, IUtf8SpanParsable<short>, IAdditionOperators<short, short, short>, IAdditiveIdentity<short, short>, IBinaryInteger<short>, IBinaryNumber<short>, IBitwiseOperators<short, short, short>, IComparisonOperators<short, short, bool>, IDecrementOperators<short>, IDivisionOperators<short, short, short>, IEqualityOperators<short, short, bool>, IIncrementOperators<short>, IMinMaxValue<short>, IModulusOperators<short, short, short>, IMultiplicativeIdentity<short, short>, IMultiplyOperators<short, short, short>, INumber<short>, INumberBase<short>, IShiftOperators<short, int, short>, ISignedNumber<short>, ISubtractionOperators<short, short, short>, IUnaryNegationOperators<short, short>, IUnaryPlusOperators<short, short>
    {
        public static short CopySign(short value, short sign);
    }
}