Any known .NET 7 implementations of an Int24?

Just wondering if there's an implementation of an Int24 type using the new signatures for the numeric types. Something akin to this;

readonly struct Int24
  : IBinaryInteger<Int24>,
    IComparable,
    IComparable<Int24>,
    IConvertible,
    IEquatable<Int24>,
    IMinMaxValue<Int24>,
    ISignedNumber<Int24>,
    ISpanFormattable
{

}