Add watcher.get_settings and watcher.update_settings (#3397)

(cherry picked from commit f31d8cf)

Author: lcawl

docs/overlays/elasticsearch-openapi-overlays.yaml

@@ -546,3 +546,24 @@ actions:
               examples:
                 delegatePkiResponseExample1:
                   $ref: "../../specification/security/delegate_pki/examples/200_response/SecurityDelegatePkiResponseExample1.yaml"
+## Examples for watcher
+  - target: "$.paths['/_watcher/settings']['put']"
+    description: "Add request example for update watcher settings"
+    update:
+      requestBody: 
+        content: 
+          application/json: 
+            examples:
+              updateWatcherSettingsRequestExample1: 
+                $ref: "../../specification/watcher/update_settings/examples/request/WatcherUpdateSettingsRequestExample1.yaml"
+  - target: "$.paths['/_watcher/settings']['get']"
+    description: "Add response example for get watcher settings"
+    update:
+      responses:
+        200:
+          content: 
+            application/json: 
+              examples:
+                updateWatcherSettingsRequestExample1: 
+                  $ref: "../../specification/watcher/get_settings/examples/200_response/WatcherGetSettingsResponseExample1.yaml"
+              

output/openapi/elasticsearch-openapi.json

@@ -777,24 +777,12 @@
         "interface definition watcher._types:TriggerEventContainer - Property schedule is a single-variant and must be required"
       ]
     },
-    "watcher.get_settings": {
-      "request": [
-        "Missing request & response"
-      ],
-      "response": []
-    },
     "watcher.start": {
       "request": [
         "Request: missing json spec query parameter 'master_timeout'"
       ],
       "response": []
     },
-    "watcher.update_settings": {
-      "request": [
-        "Missing request & response"
-      ],
-      "response": []
-    },
     "xpack.info": {
       "request": [
         "Request: query parameter 'human' does not exist in the json spec",