# Changes LatchBio did on their forks - [ ] Handling None/nil values - [ ] [SumType](https://github.com/latchbio/flaightidl/blob/master/protos/flyteidl/core/types.proto#L67) - Type Eraser vs Annotated - [ ] RecordType (DataClasses as first class type) - [ ] Attach Workflow and Task Metadata to the types - [ ] e.g. https://console.latch.ai/explore/2310/info - [ ] e.g. [yaml metadata support](https://gist.github.com/maximsmol/dffddce81c8290365d9e4006b23e8dc1#file-__init__-py-L189-L197) - [ ] Annotated https://gist.github.com/maximsmol/dffddce81c8290365d9e4006b23e8dc1#file-__init__-py-L189-L197