Specifies behavior when an unknown derived type discriminator is encountered.
public enum TomlUnknownDerivedTypeHandling
kind:method, kind:property, kind:ctor. Press Esc to clear.FailFail deserialization.FallBackToBaseTypeFallback to the base type.UnspecifiedUse the serializer options default. This value is only valid on attribute properties and must not be used on TomlPolymorphismOptions.