## Description
Split the collection interface into stuff used during backup and stuff used during restore. Does not change other code beyond fixing types
## Does this PR need a docs update or release note?
- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No
## Type of change
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [x] 🧹 Tech Debt/Cleanup
## Issue(s)
* closes#1944
## Test Plan
- [ ] 💪 Manual
- [x] ⚡ Unit test
- [x] 💚 E2E