Fix eql.search response types (#2663)

Author: pquentin

output/openapi/elasticsearch-openapi.json

@@ -78919,6 +78919,13 @@
             "description": "Original JSON body passed for the event at index time.",
             "type": "object"
           },
+          "missing": {
+            "externalDocs": {
+              "url": "https://www.elastic.co/guide/en/elasticsearch/reference/current/eql-syntax.html#eql-missing-events"
+            },
+            "description": "Set to `true` for events in a timespan-constrained sequence that do not meet a given condition.",
+            "type": "boolean"
+          },
           "fields": {
             "type": "object",
             "additionalProperties": {
@@ -78957,8 +78964,7 @@
           }
         },
         "required": [
-          "events",
-          "join_keys"
+          "events"
         ]
       },
       "eql.search:ResultPosition": {

output/openapi/elasticsearch-serverless-openapi.json

@@ -113905,6 +113905,20 @@
             }
           }
         },
+        {
+          "description": "Set to `true` for events in a timespan-constrained sequence that do not meet a given condition.",
+          "docId": "eql-missing-events",
+          "docUrl": "https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html#eql-missing-events",
+          "name": "missing",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
         {
           "name": "fields",
           "required": false,
@@ -113927,7 +113941,7 @@
           }
         }
       ],
-      "specLocation": "eql/_types/EqlHits.ts#L41-L49"
+      "specLocation": "eql/_types/EqlHits.ts#L41-L54"
     },
     {
       "generics": [
@@ -113971,7 +113985,7 @@
           "docId": "eql-sequences",
           "docUrl": "https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html#eql-sequences",
           "name": "join_keys",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "array_of",
             "value": {
@@ -113980,7 +113994,7 @@
           }
         }
       ],
-      "specLocation": "eql/_types/EqlHits.ts#L51-L59"
+      "specLocation": "eql/_types/EqlHits.ts#L56-L64"
     },
     {
       "kind": "interface",

output/schema/schema-serverless.json

@@ -143,6 +143,7 @@ eql-async-search-status-api,https://www.elastic.co/guide/en/elasticsearch/refere
 eql-basic-syntax,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html#eql-basic-syntax
 eql-search-api,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-search-api.html
 eql-sequences,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html#eql-sequences
+eql-missing-events,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html#eql-missing-events
 eql-syntax,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-syntax.html
 eql,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql.html
 esql-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/esql-rest.html

output/schema/schema.json

@@ -45,6 +45,11 @@ export class HitsEvent<TEvent> {
   _id: Id
   /** Original JSON body passed for the event at index time. */
   _source: TEvent
+  /**
+   * Set to `true` for events in a timespan-constrained sequence that do not meet a given condition.
+   * @doc_id eql-missing-events
+   */
+  missing?: boolean
   fields?: Dictionary<Field, UserDefinedValue[]>
 }
 
@@ -55,5 +60,5 @@ export class HitsSequence<TEvent> {
    * Shared field values used to constrain matches in the sequence. These are defined using the by keyword in the EQL query syntax.
    * @doc_id eql-sequences
    */
-  join_keys: UserDefinedValue[]
+  join_keys?: UserDefinedValue[]
 }