Creating and emailing patches
The tradition with arch is to publish your archive, and send only a merge request. However, you may also want to send changesets by email.
To email someone your patch like a changeset, you can fetch the correct .patches.tar.gz file from your archive, either manually, or with tla get-changeset/tla delta + tar xzvf, which they can apply with tla apply-changeset.
If you want to run tla show-changeset on the tar file you need to untar it first.