fix: use "import type" in the Typescript SDK

[jkaster]

Updated the code generator and the TS SDK to use import type where appropriate

[joeldodge79]

Looks like this has been around since TS 3.8 - but I do have a question around what versions of typescript we're committed to supporting in this SDK?

Also, I'd consider switching to a fix: or feat: prefix - just so it shows up in the changelog so that maybe an old TS 3.7 project that breaks might more easily find a clue as to why. But if you don't want it showing up in the changelog, then seems like refactor: is a more human-reading-git-log meaningful prefix.

[joeldodge79]

CI is wonky - it's reporting the "skipped" runs (from the cla-bot applying "cla: yes" tag) instead of the real runs: you can see both on the checks tab (CI did pass). Need to figure that out

[jkaster]

Good question about supported TS versions. I'd say since we're just now approaching GA, TS 4.x is our minimum

[jkaster]

We can consider it a "fix" although nothing was broken. It just wasn't optimal.

[github-actions]

Test Results

    7 files    73 suites   3m 57s ⏱️
153 tests 153 ✔️ 0 💤 0 ❌
535 runs  535 ✔️ 0 💤 0 ❌

Results for commit c7b5bf8.

[AprilArcus]

@joeldodge79 I agree; the minimum version we support in the GA should be the current version at that time. That's TS 4.2 as of today, with TS 4.3 scheduled for May 25.

At minimum, TS 4.1 has some extremely powerful new features that I would not want to be without in the long term.

[jkaster]

We currently build codegen with TS 4.2.2, so I'm personally fine with saying 4.2 and above