public T?TryGet(OneOf <T, OneOf.Types.None>?snapshotValue)
{
snapshotValue ??= updatedValue;
return(snapshotValue.Value.Match(
v => v,
_ => db.TryGet <T>(key, columnFamily)));
}
#pragma warning disable CS8764 // Nullability of reference types in return type doesn't match overridden member.
// Neo 2.x is not compiled with C# 8, so not sure why C# compiler thinks
// TryGetInternal can't return null. But it can so suppress the warning.
protected override TValue?TryGetInternal(TKey key)
#pragma warning restore CS8764 // Nullability of reference types in return type doesn't match overridden member.
{
return(db.TryGet <TKey, TValue>(key, familyHandle, readOptions));
}