How to write to Partial sealed directory

Hi

I'm trying to run a tool from BuildXL that consumes files from some directory and writes new files to the same directory.
For what I read, it looks like I have to use partial sealed directory but I can't figure out how to specify that output of that tool should be that partial sealed directory.

For example:

const sealedDir = Transformer.sealPartialDirectory(dir1, globR(dir1));

I cannot specify sealedDir in outputs because it is not compatible. If I try to use sealedDir.root there, then BuildXL got some internal error.
If I try to use dir1 in outputs, I got error that dir1 coincides with the sealed directory.

What is correct way to use it?

Thank you,
Vlad

Start with the BuildXL APIs shown in the issue, especially Transformer.sealPartialDirectory and the outputs parameter, and review how partial sealed directories are represented. Determine the supported way to let a tool consume and write within the same directory, then document an example that avoids the reported compatibility and sealed-directory errors.