Merge branch 'master' into add-solution-deep-links

.ci/Jenkinsfile_baseline_capture

@@ -36,6 +36,7 @@ kibanaPipeline(timeoutMinutes: 210) {
                   tasks([
                     kibanaPipeline.functionalTestProcess('oss-baseline', './test/scripts/jenkins_baseline.sh'),
                     kibanaPipeline.functionalTestProcess('xpack-baseline', './test/scripts/jenkins_xpack_baseline.sh'),
+                    kibanaPipeline.scriptTask('Check Public API Docs', 'test/scripts/checks/plugin_public_api_docs.sh'),
                   ])
                 }
               }

.github/CODEOWNERS

@@ -312,6 +312,7 @@
 /x-pack/plugins/console_extensions/  @elastic/es-ui
 /x-pack/plugins/grokdebugger/  @elastic/es-ui
 /x-pack/plugins/index_management/  @elastic/es-ui
+/x-pack/plugins/license_api_guard/  @elastic/es-ui
 /x-pack/plugins/license_management/  @elastic/es-ui
 /x-pack/plugins/painless_lab/  @elastic/es-ui
 /x-pack/plugins/remote_clusters/  @elastic/es-ui

docs/api/saved-objects/find.asciidoc

@@ -53,9 +53,14 @@ experimental[] Retrieve a paginated set of {kib} saved objects by various condit
   (Optional, object) Filters to objects that have a relationship with the type and ID combination.
 
 `filter`::
-  (Optional, string) The filter is a KQL string with the caveat that if you filter with an attribute from your type saved object.
-  It should look like that savedObjectType.attributes.title: "myTitle". However, If you used a direct attribute of a saved object like `updatedAt`,
-  you will have to define your filter like that savedObjectType.updatedAt > 2018-12-22.
+  (Optional, string) The filter is a KQL string with the caveat that if you filter with an attribute from your saved object type,
+  it should look like that: `savedObjectType.attributes.title: "myTitle"`. However, If you use a root attribute of a saved 
+  object such as `updated_at`, you will have to define your filter like that: `savedObjectType.updated_at > 2018-12-22`.
+
+`aggs`::
+  (Optional, string) **experimental** An aggregation structure, serialized as a string. The field format is similar to `filter`, meaning
+  that to use a saved object type attribute in the aggregation, the `savedObjectType.attributes.title`: "myTitle"` format
+  must be used. For root fields, the syntax is `savedObjectType.rootField`
 
 NOTE: As objects change in {kib}, the results on each page of the response also
 change. Use the find API for traditional paginated results, but avoid using it to export large amounts of data.

docs/developer/getting-started/monorepo-packages.asciidoc

@@ -63,6 +63,7 @@ yarn kbn watch-bazel
 
 - @elastic/datemath
 - @kbn/apm-utils
+- @kbn/babel-preset
 - @kbn/config-schema
 - @kbn/tinymath
 - @kbn/utility-types

docs/developer/plugin-list.asciidoc

@@ -444,6 +444,10 @@ the infrastructure monitoring use-case within Kibana.
 |Visualization editor allowing to quickly and easily configure compelling visualizations to use on dashboards and canvas workpads.
 
 
+|{kib-repo}blob/{branch}/x-pack/plugins/license_api_guard/README.md[licenseApiGuard]
+|This plugin is used by ES UI plugins to reject API requests when the plugin is unsupported by the user's license.
+
+
 |{kib-repo}blob/{branch}/x-pack/plugins/license_management/README.md[licenseManagement]
 |This plugin enables users to activate a trial license, downgrade to Basic, and upload a new license.
 

docs/development/core/public/kibana-plugin-core-public.savedobjectsclient.find.md

@@ -9,5 +9,5 @@ Search for objects
 <b>Signature:</b>
 
 ```typescript
-find: <T = unknown>(options: SavedObjectsFindOptions) => Promise<SavedObjectsFindResponsePublic<T>>;
+find: <T = unknown, A = unknown>(options: SavedObjectsFindOptions) => Promise<SavedObjectsFindResponsePublic<T, unknown>>;
 ```

docs/development/core/public/kibana-plugin-core-public.savedobjectsclient.md

@@ -24,7 +24,7 @@ The constructor for this class is marked as internal. Third-party code should no
 |  [bulkGet](./kibana-plugin-core-public.savedobjectsclient.bulkget.md) |  | <code>(objects?: Array&lt;{</code><br/><code>        id: string;</code><br/><code>        type: string;</code><br/><code>    }&gt;) =&gt; Promise&lt;SavedObjectsBatchResponse&lt;unknown&gt;&gt;</code> | Returns an array of objects by id |
 |  [create](./kibana-plugin-core-public.savedobjectsclient.create.md) |  | <code>&lt;T = unknown&gt;(type: string, attributes: T, options?: SavedObjectsCreateOptions) =&gt; Promise&lt;SimpleSavedObject&lt;T&gt;&gt;</code> | Persists an object |
 |  [delete](./kibana-plugin-core-public.savedobjectsclient.delete.md) |  | <code>(type: string, id: string, options?: SavedObjectsDeleteOptions &#124; undefined) =&gt; ReturnType&lt;SavedObjectsApi['delete']&gt;</code> | Deletes an object |
-|  [find](./kibana-plugin-core-public.savedobjectsclient.find.md) |  | <code>&lt;T = unknown&gt;(options: SavedObjectsFindOptions) =&gt; Promise&lt;SavedObjectsFindResponsePublic&lt;T&gt;&gt;</code> | Search for objects |
+|  [find](./kibana-plugin-core-public.savedobjectsclient.find.md) |  | <code>&lt;T = unknown, A = unknown&gt;(options: SavedObjectsFindOptions) =&gt; Promise&lt;SavedObjectsFindResponsePublic&lt;T, unknown&gt;&gt;</code> | Search for objects |
 |  [get](./kibana-plugin-core-public.savedobjectsclient.get.md) |  | <code>&lt;T = unknown&gt;(type: string, id: string) =&gt; Promise&lt;SimpleSavedObject&lt;T&gt;&gt;</code> | Fetches a single object |
 
 ## Methods

docs/development/core/public/kibana-plugin-core-public.savedobjectsfindresponsepublic.aggregations.md

@@ -0,0 +1,11 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-public](./kibana-plugin-core-public.md) &gt; [SavedObjectsFindResponsePublic](./kibana-plugin-core-public.savedobjectsfindresponsepublic.md) &gt; [aggregations](./kibana-plugin-core-public.savedobjectsfindresponsepublic.aggregations.md)
+
+## SavedObjectsFindResponsePublic.aggregations property
+
+<b>Signature:</b>
+
+```typescript
+aggregations?: A;
+```

docs/development/core/public/kibana-plugin-core-public.savedobjectsfindresponsepublic.md

@@ -11,13 +11,14 @@ Return type of the Saved Objects `find()` method.
 <b>Signature:</b>
 
 ```typescript
-export interface SavedObjectsFindResponsePublic<T = unknown> extends SavedObjectsBatchResponse<T> 
+export interface SavedObjectsFindResponsePublic<T = unknown, A = unknown> extends SavedObjectsBatchResponse<T> 
 ```
 
 ## Properties
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [aggregations](./kibana-plugin-core-public.savedobjectsfindresponsepublic.aggregations.md) | <code>A</code> |  |
 |  [page](./kibana-plugin-core-public.savedobjectsfindresponsepublic.page.md) | <code>number</code> |  |
 |  [perPage](./kibana-plugin-core-public.savedobjectsfindresponsepublic.perpage.md) | <code>number</code> |  |
 |  [total](./kibana-plugin-core-public.savedobjectsfindresponsepublic.total.md) | <code>number</code> |  |

docs/development/core/server/kibana-plugin-core-server.savedobjectsclient.find.md

@@ -9,7 +9,7 @@ Find all SavedObjects matching the search query
 <b>Signature:</b>
 
 ```typescript
-find<T = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindResponse<T>>;
+find<T = unknown, A = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindResponse<T, A>>;
 ```
 
 ## Parameters
@@ -20,5 +20,5 @@ find<T = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindRes
 
 <b>Returns:</b>
 
-`Promise<SavedObjectsFindResponse<T>>`
+`Promise<SavedObjectsFindResponse<T, A>>`
 

docs/development/core/server/kibana-plugin-core-server.savedobjectsfindresponse.aggregations.md

@@ -0,0 +1,11 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [SavedObjectsFindResponse](./kibana-plugin-core-server.savedobjectsfindresponse.md) &gt; [aggregations](./kibana-plugin-core-server.savedobjectsfindresponse.aggregations.md)
+
+## SavedObjectsFindResponse.aggregations property
+
+<b>Signature:</b>
+
+```typescript
+aggregations?: A;
+```

docs/development/core/server/kibana-plugin-core-server.savedobjectsfindresponse.md

@@ -11,13 +11,14 @@ Return type of the Saved Objects `find()` method.
 <b>Signature:</b>
 
 ```typescript
-export interface SavedObjectsFindResponse<T = unknown> 
+export interface SavedObjectsFindResponse<T = unknown, A = unknown> 
 ```
 
 ## Properties
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [aggregations](./kibana-plugin-core-server.savedobjectsfindresponse.aggregations.md) | <code>A</code> |  |
 |  [page](./kibana-plugin-core-server.savedobjectsfindresponse.page.md) | <code>number</code> |  |
 |  [per\_page](./kibana-plugin-core-server.savedobjectsfindresponse.per_page.md) | <code>number</code> |  |
 |  [pit\_id](./kibana-plugin-core-server.savedobjectsfindresponse.pit_id.md) | <code>string</code> |  |

docs/development/core/server/kibana-plugin-core-server.savedobjectsrepository.find.md

@@ -7,7 +7,7 @@
 <b>Signature:</b>
 
 ```typescript
-find<T = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindResponse<T>>;
+find<T = unknown, A = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindResponse<T, A>>;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ find<T = unknown>(options: SavedObjectsFindOptions): Promise<SavedObjectsFindRes
 
 <b>Returns:</b>
 
-`Promise<SavedObjectsFindResponse<T>>`
+`Promise<SavedObjectsFindResponse<T, A>>`
 
 {<!-- -->promise<!-- -->} - { saved\_objects: \[{ id, type, version, attributes }<!-- -->\], total, per\_page, page }
 

docs/development/core/server/kibana-plugin-core-server.savedobjectsutils.createemptyfindresponse.md

@@ -9,5 +9,5 @@ Creates an empty response for a find operation. This is only intended to be used
 <b>Signature:</b>
 
 ```typescript
-static createEmptyFindResponse: <T>({ page, perPage, }: SavedObjectsFindOptions) => SavedObjectsFindResponse<T>;
+static createEmptyFindResponse: <T, A>({ page, perPage, }: SavedObjectsFindOptions) => SavedObjectsFindResponse<T, A>;
 ```

docs/development/core/server/kibana-plugin-core-server.savedobjectsutils.md

@@ -15,7 +15,7 @@ export declare class SavedObjectsUtils
 
 |  Property | Modifiers | Type | Description |
 |  --- | --- | --- | --- |
-|  [createEmptyFindResponse](./kibana-plugin-core-server.savedobjectsutils.createemptyfindresponse.md) | <code>static</code> | <code>&lt;T&gt;({ page, perPage, }: SavedObjectsFindOptions) =&gt; SavedObjectsFindResponse&lt;T&gt;</code> | Creates an empty response for a find operation. This is only intended to be used by saved objects client wrappers. |
+|  [createEmptyFindResponse](./kibana-plugin-core-server.savedobjectsutils.createemptyfindresponse.md) | <code>static</code> | <code>&lt;T, A&gt;({ page, perPage, }: SavedObjectsFindOptions) =&gt; SavedObjectsFindResponse&lt;T, A&gt;</code> | Creates an empty response for a find operation. This is only intended to be used by saved objects client wrappers. |
 |  [namespaceIdToString](./kibana-plugin-core-server.savedobjectsutils.namespaceidtostring.md) | <code>static</code> | <code>(namespace?: string &#124; undefined) =&gt; string</code> | Converts a given saved object namespace ID to its string representation. All namespace IDs have an identical string representation, with the exception of the <code>undefined</code> namespace ID (which has a namespace string of <code>'default'</code>). |
 |  [namespaceStringToId](./kibana-plugin-core-server.savedobjectsutils.namespacestringtoid.md) | <code>static</code> | <code>(namespace: string) =&gt; string &#124; undefined</code> | Converts a given saved object namespace string to its ID representation. All namespace strings have an identical ID representation, with the exception of the <code>'default'</code> namespace string (which has a namespace ID of <code>undefined</code>). |
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.aggconfigs.hierarchical.md

@@ -0,0 +1,11 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-plugins-data-public](./kibana-plugin-plugins-data-public.md) &gt; [AggConfigs](./kibana-plugin-plugins-data-public.aggconfigs.md) &gt; [hierarchical](./kibana-plugin-plugins-data-public.aggconfigs.hierarchical.md)
+
+## AggConfigs.hierarchical property
+
+<b>Signature:</b>
+
+```typescript
+hierarchical?: boolean;
+```

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.aggconfigs.md

@@ -22,6 +22,7 @@ export declare class AggConfigs
 |  --- | --- | --- | --- |
 |  [aggs](./kibana-plugin-plugins-data-public.aggconfigs.aggs.md) |  | <code>IAggConfig[]</code> |  |
 |  [createAggConfig](./kibana-plugin-plugins-data-public.aggconfigs.createaggconfig.md) |  | <code>&lt;T extends AggConfig = AggConfig&gt;(params: CreateAggConfigParams, { addToAggConfigs }?: {</code><br/><code>        addToAggConfigs?: boolean &#124; undefined;</code><br/><code>    }) =&gt; T</code> |  |
+|  [hierarchical](./kibana-plugin-plugins-data-public.aggconfigs.hierarchical.md) |  | <code>boolean</code> |  |
 |  [indexPattern](./kibana-plugin-plugins-data-public.aggconfigs.indexpattern.md) |  | <code>IndexPattern</code> |  |
 |  [timeFields](./kibana-plugin-plugins-data-public.aggconfigs.timefields.md) |  | <code>string[]</code> |  |
 |  [timeRange](./kibana-plugin-plugins-data-public.aggconfigs.timerange.md) |  | <code>TimeRange</code> |  |
@@ -46,5 +47,5 @@ export declare class AggConfigs
 |  [onSearchRequestStart(searchSource, options)](./kibana-plugin-plugins-data-public.aggconfigs.onsearchrequeststart.md) |  |  |
 |  [setTimeFields(timeFields)](./kibana-plugin-plugins-data-public.aggconfigs.settimefields.md) |  |  |
 |  [setTimeRange(timeRange)](./kibana-plugin-plugins-data-public.aggconfigs.settimerange.md) |  |  |
-|  [toDsl(hierarchical)](./kibana-plugin-plugins-data-public.aggconfigs.todsl.md) |  |  |
+|  [toDsl()](./kibana-plugin-plugins-data-public.aggconfigs.todsl.md) |  |  |
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.aggconfigs.todsl.md

@@ -7,15 +7,8 @@
 <b>Signature:</b>
 
 ```typescript
-toDsl(hierarchical?: boolean): Record<string, any>;
+toDsl(): Record<string, any>;
 ```
-
-## Parameters
-
-|  Parameter | Type | Description |
-|  --- | --- | --- |
-|  hierarchical | <code>boolean</code> |  |
-
 <b>Returns:</b>
 
 `Record<string, any>`

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.isearchoptions.requestresponder.md → docs/development/plugins/data/public/kibana-plugin-plugins-data-public.isearchoptions.inspector.md

@@ -1,11 +1,13 @@
 <!-- Do not edit this file. It is automatically generated by API Documenter. -->
 
-[Home](./index.md) &gt; [kibana-plugin-plugins-data-public](./kibana-plugin-plugins-data-public.md) &gt; [ISearchOptions](./kibana-plugin-plugins-data-public.isearchoptions.md) &gt; [requestResponder](./kibana-plugin-plugins-data-public.isearchoptions.requestresponder.md)
+[Home](./index.md) &gt; [kibana-plugin-plugins-data-public](./kibana-plugin-plugins-data-public.md) &gt; [ISearchOptions](./kibana-plugin-plugins-data-public.isearchoptions.md) &gt; [inspector](./kibana-plugin-plugins-data-public.isearchoptions.inspector.md)
 
-## ISearchOptions.requestResponder property
+## ISearchOptions.inspector property
+
+Inspector integration options
 
 <b>Signature:</b>
 
 ```typescript
-requestResponder?: RequestResponder;
+inspector?: IInspectorInfo;
 ```

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.isearchoptions.md

@@ -16,10 +16,10 @@ export interface ISearchOptions
 |  --- | --- | --- |
 |  [abortSignal](./kibana-plugin-plugins-data-public.isearchoptions.abortsignal.md) | <code>AbortSignal</code> | An <code>AbortSignal</code> that allows the caller of <code>search</code> to abort a search request. |
 |  [indexPattern](./kibana-plugin-plugins-data-public.isearchoptions.indexpattern.md) | <code>IndexPattern</code> | Index pattern reference is used for better error messages |
+|  [inspector](./kibana-plugin-plugins-data-public.isearchoptions.inspector.md) | <code>IInspectorInfo</code> | Inspector integration options |
 |  [isRestore](./kibana-plugin-plugins-data-public.isearchoptions.isrestore.md) | <code>boolean</code> | Whether the session is restored (i.e. search requests should re-use the stored search IDs, rather than starting from scratch) |
 |  [isStored](./kibana-plugin-plugins-data-public.isearchoptions.isstored.md) | <code>boolean</code> | Whether the session is already saved (i.e. sent to background) |
 |  [legacyHitsTotal](./kibana-plugin-plugins-data-public.isearchoptions.legacyhitstotal.md) | <code>boolean</code> | Request the legacy format for the total number of hits. If sending <code>rest_total_hits_as_int</code> to something other than <code>true</code>, this should be set to <code>false</code>. |
-|  [requestResponder](./kibana-plugin-plugins-data-public.isearchoptions.requestresponder.md) | <code>RequestResponder</code> |  |
 |  [sessionId](./kibana-plugin-plugins-data-public.isearchoptions.sessionid.md) | <code>string</code> | A session ID, grouping multiple search requests into a single session. |
 |  [strategy](./kibana-plugin-plugins-data-public.isearchoptions.strategy.md) | <code>string</code> | Use this option to force using a specific server side search strategy. Leave empty to use the default strategy. |
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchinterceptor.getserializableoptions.md

@@ -0,0 +1,22 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-plugins-data-public](./kibana-plugin-plugins-data-public.md) &gt; [SearchInterceptor](./kibana-plugin-plugins-data-public.searchinterceptor.md) &gt; [getSerializableOptions](./kibana-plugin-plugins-data-public.searchinterceptor.getserializableoptions.md)
+
+## SearchInterceptor.getSerializableOptions() method
+
+<b>Signature:</b>
+
+```typescript
+protected getSerializableOptions(options?: ISearchOptions): Pick<ISearchOptions, "strategy" | "sessionId" | "isStored" | "isRestore" | "legacyHitsTotal">;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  options | <code>ISearchOptions</code> |  |
+
+<b>Returns:</b>
+
+`Pick<ISearchOptions, "strategy" | "sessionId" | "isStored" | "isRestore" | "legacyHitsTotal">`
+

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchinterceptor.md

@@ -26,6 +26,7 @@ export declare class SearchInterceptor
 
 |  Method | Modifiers | Description |
 |  --- | --- | --- |
+|  [getSerializableOptions(options)](./kibana-plugin-plugins-data-public.searchinterceptor.getserializableoptions.md) |  |  |
 |  [getTimeoutMode()](./kibana-plugin-plugins-data-public.searchinterceptor.gettimeoutmode.md) |  |  |
 |  [handleSearchError(e, options, isTimeout)](./kibana-plugin-plugins-data-public.searchinterceptor.handlesearcherror.md) |  |  |
 |  [search(request, options)](./kibana-plugin-plugins-data-public.searchinterceptor.search.md) |  | Searches using the given <code>search</code> method. Overrides the <code>AbortSignal</code> with one that will abort either when the request times out, or when the original <code>AbortSignal</code> is aborted. Updates <code>pendingCount$</code> when the request is started/finalized. |

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsource.fetch.md

@@ -14,7 +14,7 @@ Fetch this source and reject the returned Promise on error
 <b>Signature:</b>
 
 ```typescript
-fetch(options?: ISearchOptions): Promise<import("@elastic/elasticsearch/api/types").SearchResponse<any>>;
+fetch(options?: ISearchOptions): Promise<estypes.SearchResponse<any>>;
 ```
 
 ## Parameters
@@ -25,5 +25,5 @@ fetch(options?: ISearchOptions): Promise<import("@elastic/elasticsearch/api/type
 
 <b>Returns:</b>
 
-`Promise<import("@elastic/elasticsearch/api/types").SearchResponse<any>>`
+`Promise<estypes.SearchResponse<any>>`
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsource.fetch_.md

@@ -9,7 +9,7 @@ Fetch this source from Elasticsearch, returning an observable over the response(
 <b>Signature:</b>
 
 ```typescript
-fetch$(options?: ISearchOptions): import("rxjs").Observable<import("@elastic/elasticsearch/api/types").SearchResponse<any>>;
+fetch$(options?: ISearchOptions): Observable<estypes.SearchResponse<any>>;
 ```
 
 ## Parameters
@@ -20,5 +20,5 @@ fetch$(options?: ISearchOptions): import("rxjs").Observable<import("@elastic/ela
 
 <b>Returns:</b>
 
-`import("rxjs").Observable<import("@elastic/elasticsearch/api/types").SearchResponse<any>>`
+`Observable<estypes.SearchResponse<any>>`
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsourcefields.aggs.md

@@ -9,5 +9,5 @@
 <b>Signature:</b>
 
 ```typescript
-aggs?: any;
+aggs?: object | IAggConfigs | (() => object);
 ```

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsourcefields.md

@@ -16,7 +16,7 @@ export interface SearchSourceFields
 
 |  Property | Type | Description |
 |  --- | --- | --- |
-|  [aggs](./kibana-plugin-plugins-data-public.searchsourcefields.aggs.md) | <code>any</code> | [AggConfigs](./kibana-plugin-plugins-data-public.aggconfigs.md) |
+|  [aggs](./kibana-plugin-plugins-data-public.searchsourcefields.aggs.md) | <code>object &#124; IAggConfigs &#124; (() =&gt; object)</code> | [AggConfigs](./kibana-plugin-plugins-data-public.aggconfigs.md) |
 |  [fields](./kibana-plugin-plugins-data-public.searchsourcefields.fields.md) | <code>SearchFieldValue[]</code> | Retrieve fields via the search Fields API |
 |  [fieldsFromSource](./kibana-plugin-plugins-data-public.searchsourcefields.fieldsfromsource.md) | <code>NameList</code> | Retreive fields directly from \_source (legacy behavior) |
 |  [filter](./kibana-plugin-plugins-data-public.searchsourcefields.filter.md) | <code>Filter[] &#124; Filter &#124; (() =&gt; Filter[] &#124; Filter &#124; undefined)</code> | [Filter](./kibana-plugin-plugins-data-public.filter.md) |