Ferran Borreguero

Do you have a reproduction of the issue? [Cannot](https://gist.github.com/ferranbt/a8011f8b14dcf47003f3cbde6fb0eeb2) reproduce it on my end.

Hi, what is your use case for a custom hash function?

Do you have a repro of the issue? It does work for me [here](https://github.com/ferranbt/fastssz/blob/test-issue-164/sszgen/testcases/issue_164.go).

Can you share a small repro of the issue?

Hey, if you are still interested on this issue, could you upstream the latest changes, I have done substantial changes in the new v2 version.

LGTM! Can you regenerate the code generation? ``` make build-spec-tests make generate-testcases ``` Also note that this feature lands in the v2 release which includes a few more changes.

Can you share a repro of the struct that fails?

I was able to reproduce it. There are two issues: - Uint need to specify the amount of bytes. - I do not think signed integers are part of the...

For `include` to work you have to use the absolute path for `github.com/ssvlabs/ssv-spec/types`. The code generator does not resolve paths itself.

I think it could be as simple as: ``` #[cfg_attr(feature = "ssz_hash", derive(tree_hash_derive::TreeHash))] pub struct BidTrace { ``` and ``` # ssz_hash tree_hash = { version = "0.6", optional =...