# What this PR does
Adds openAPI schema for following endpoints:
- /escalation_chain
- /escalation_policy
- /channel_filter
- /user_notification_policy
## Which issue(s) this PR closes
Related to https://github.com/grafana/oncall-private/issues/2457
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
show up in the autogenerated release notes.
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Co-authored-by: Vadim Stepanov <vadimkerr@gmail.com>
# What this PR does
Removes setting team to default value on PUT request to internal
endpoints if team is not in request data.
(For integrations, escalation chains, schedules and webhooks)
## Which issue(s) this PR fixes
https://github.com/grafana/oncall-private/issues/2368
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
Adds a new filter on alert groups page that allows to filter alert
groups by escalation chain.
<img width="1204" alt="Screenshot 2023-03-13 at 22 42 00"
src="https://user-images.githubusercontent.com/20116910/224848730-ef753856-a050-4acb-ba36-498d2bca2b4f.png">
## Which issue(s) this PR fixes
This should be useful on it's own as it's giving more filtering
capabilities, but it also could be useful for
https://github.com/grafana/oncall/issues/1300, if PD rulesets are
migrated to a single integration with multiple escalation chains.
## Checklist
- [x] Tests updated
- [x] `CHANGELOG.md` updated
