Merge branch '9.0' into backport-4445-to-9.0

Author: miguelgrinberg

.backportrc.json

@@ -0,0 +1,6 @@
+{
+  "repoOwner": "elastic",
+  "repoName": "elasticsearch-specification",
+  "targetBranchChoices": ["9.0", "8.19", "8.18", "8.17"],
+  "fork": false
+}

specification/slm/_types/SnapshotLifecycle.ts

@@ -149,3 +149,11 @@ export class Invocation {
   snapshot_name: Name
   time: DateTime
 }
+
+export class SnapshotPolicyStats {
+  policy: string
+  snapshots_taken: long
+  snapshots_failed: long
+  snapshots_deleted: long
+  snapshot_deletion_failures: long
+}

specification/slm/get_stats/GetSnapshotLifecycleStatsResponse.ts

@@ -19,6 +19,7 @@
 
 import { long } from '@_types/Numeric'
 import { Duration, DurationValue, UnitMillis } from '@_types/Time'
+import { SnapshotPolicyStats } from '@slm/_types/SnapshotLifecycle'
 
 export class Response {
   body: {
@@ -31,6 +32,6 @@ export class Response {
     total_snapshot_deletion_failures: long
     total_snapshots_failed: long
     total_snapshots_taken: long
-    policy_stats: string[]
+    policy_stats: SnapshotPolicyStats[]
   }
 }