diff --git a/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md b/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md
index d3131b7fd666ff..5238e2f1913e4a 100644
--- a/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md
+++ b/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md
@@ -7,5 +7,5 @@
 <b>Signature:</b>
 
 ```typescript
-debouncedFetch: _.DebouncedFunc<(searchValue: string) => Promise<void>>;
+debouncedFetch: ((searchValue: string) => Promise<void>) & _.Cancelable;
 ```
diff --git a/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.md b/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.md
index a3319fad7ef831..4f4feeb4caa8d2 100644
--- a/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.md
+++ b/docs/development/plugins/data/public/kibana-plugin-plugins-data-public.indexpatternselect.md
@@ -20,7 +20,7 @@ export declare class IndexPatternSelect extends Component<IndexPatternSelectProp
 
 |  Property | Modifiers | Type | Description |
 |  --- | --- | --- | --- |
-|  [debouncedFetch](./kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md) |  | <code>_.DebouncedFunc&lt;(searchValue: string) =&gt; Promise&lt;void&gt;&gt;</code> |  |
+|  [debouncedFetch](./kibana-plugin-plugins-data-public.indexpatternselect.debouncedfetch.md) |  | <code>((searchValue: string) =&gt; Promise&lt;void&gt;) &amp; _.Cancelable</code> |  |
 |  [fetchOptions](./kibana-plugin-plugins-data-public.indexpatternselect.fetchoptions.md) |  | <code>(searchValue?: string) =&gt; void</code> |  |
 |  [fetchSelectedIndexPattern](./kibana-plugin-plugins-data-public.indexpatternselect.fetchselectedindexpattern.md) |  | <code>(indexPatternId: string) =&gt; Promise&lt;void&gt;</code> |  |
 |  [onChange](./kibana-plugin-plugins-data-public.indexpatternselect.onchange.md) |  | <code>(selectedOptions: any) =&gt; void</code> |  |
diff --git a/packages/kbn-optimizer/src/integration_tests/__snapshots__/basic_optimization.test.ts.snap b/packages/kbn-optimizer/src/integration_tests/__snapshots__/basic_optimization.test.ts.snap
index 79442c35df2658..038beca703720c 100644
--- a/packages/kbn-optimizer/src/integration_tests/__snapshots__/basic_optimization.test.ts.snap
+++ b/packages/kbn-optimizer/src/integration_tests/__snapshots__/basic_optimization.test.ts.snap
@@ -98,7 +98,7 @@ OptimizerConfig {
 }
 `;
 
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sourceMap=obj.sourceMap;if(media){style.setAttribute(\\"media\\",media)}else{style.removeAttribute(\\"media\\")}if(sourceMap&&btoa){css+=\\"\\\\n/*# sourceMappingURL=data:application/json;base64,\\".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))),\\" */\\")}if(style.styleSheet){style.styleSheet.cssText=css}else{while(style.firstChild){style.removeChild(style.firstChild)}style.appendChild(document.createTextNode(css))}}var singleton=null;var singletonCounter=0;function addStyle(obj,options){var style;var update;var remove;if(options.singleton){var styleIndex=singletonCounter++;style=singleton||(singleton=insertStyleElement(options));update=applyToSingletonTag.bind(null,style,styleIndex,false);remove=applyToSingletonTag.bind(null,style,styleIndex,true)}else{style=insertStyleElement(options);update=applyToTag.bind(null,style,options);remove=function remove(){removeStyleElement(style)}}update(obj);return function 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+exports[`prepares assets for distribution: bar bundle 1`] = `"(function(modules){var installedModules={};function __webpack_require__(moduleId){if(installedModules[moduleId]){return installedModules[moduleId].exports}var module=installedModules[moduleId]={i:moduleId,l:false,exports:{}};modules[moduleId].call(module.exports,module,module.exports,__webpack_require__);module.l=true;return module.exports}__webpack_require__.m=modules;__webpack_require__.c=installedModules;__webpack_require__.d=function(exports,name,getter){if(!__webpack_require__.o(exports,name)){Object.defineProperty(exports,name,{enumerable:true,get:getter})}};__webpack_require__.r=function(exports){if(typeof Symbol!==\\"undefined\\"&&Symbol.toStringTag){Object.defineProperty(exports,Symbol.toStringTag,{value:\\"Module\\"})}Object.defineProperty(exports,\\"__esModule\\",{value:true})};__webpack_require__.t=function(value,mode){if(mode&1)value=__webpack_require__(value);if(mode&8)return value;if(mode&4&&typeof value===\\"object\\"&&value&&value.__esModule)return value;var ns=Object.create(null);__webpack_require__.r(ns);Object.defineProperty(ns,\\"default\\",{enumerable:true,value:value});if(mode&2&&typeof value!=\\"string\\")for(var key in value)__webpack_require__.d(ns,key,function(key){return value[key]}.bind(null,key));return ns};__webpack_require__.n=function(module){var getter=module&&module.__esModule?function getDefault(){return module[\\"default\\"]}:function getModuleExports(){return module};__webpack_require__.d(getter,\\"a\\",getter);return getter};__webpack_require__.o=function(object,property){return Object.prototype.hasOwnProperty.call(object,property)};__webpack_require__.p=\\"\\";return __webpack_require__(__webpack_require__.s=3)})([function(module,exports,__webpack_require__){\\"use strict\\";var isOldIE=function isOldIE(){var memo;return function memorize(){if(typeof memo===\\"undefined\\"){memo=Boolean(window&&document&&document.all&&!window.atob)}return memo}}();var getTarget=function getTarget(){var memo={};return function memorize(target){if(typeof memo[target]===\\"undefined\\"){var styleTarget=document.querySelector(target);if(window.HTMLIFrameElement&&styleTarget instanceof window.HTMLIFrameElement){try{styleTarget=styleTarget.contentDocument.head}catch(e){styleTarget=null}}memo[target]=styleTarget}return memo[target]}}();var stylesInDom=[];function getIndexByIdentifier(identifier){var result=-1;for(var i=0;i<stylesInDom.length;i++){if(stylesInDom[i].identifier===identifier){result=i;break}}return result}function modulesToDom(list,options){var idCountMap={};var identifiers=[];for(var i=0;i<list.length;i++){var item=list[i];var id=options.base?item[0]+options.base:item[0];var count=idCountMap[id]||0;var identifier=\\"\\".concat(id,\\" \\").concat(count);idCountMap[id]=count+1;var index=getIndexByIdentifier(identifier);var obj={css:item[1],media:item[2],sourceMap:item[3]};if(index!==-1){stylesInDom[index].references++;stylesInDom[index].updater(obj)}else{stylesInDom.push({identifier:identifier,updater:addStyle(obj,options),references:1})}identifiers.push(identifier)}return identifiers}function insertStyleElement(options){var style=document.createElement(\\"style\\");var attributes=options.attributes||{};if(typeof attributes.nonce===\\"undefined\\"){var nonce=true?__webpack_require__.nc:undefined;if(nonce){attributes.nonce=nonce}}Object.keys(attributes).forEach((function(key){style.setAttribute(key,attributes[key])}));if(typeof options.insert===\\"function\\"){options.insert(style)}else{var target=getTarget(options.insert||\\"head\\");if(!target){throw new Error(\\"Couldn't find a style target. 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sourceMap=obj.sourceMap;if(media){style.setAttribute(\\"media\\",media)}else{style.removeAttribute(\\"media\\")}if(sourceMap&&btoa){css+=\\"\\\\n/*# sourceMappingURL=data:application/json;base64,\\".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))),\\" */\\")}if(style.styleSheet){style.styleSheet.cssText=css}else{while(style.firstChild){style.removeChild(style.firstChild)}style.appendChild(document.createTextNode(css))}}var singleton=null;var singletonCounter=0;function addStyle(obj,options){var style;var update;var remove;if(options.singleton){var styleIndex=singletonCounter++;style=singleton||(singleton=insertStyleElement(options));update=applyToSingletonTag.bind(null,style,styleIndex,false);remove=applyToSingletonTag.bind(null,style,styleIndex,true)}else{style=insertStyleElement(options);update=applyToTag.bind(null,style,options);remove=function remove(){removeStyleElement(style)}}update(obj);return function updateStyle(newObj){if(newObj){if(newObj.css===obj.css&&newObj.media===obj.media&&newObj.sourceMap===obj.sourceMap){return}update(obj=newObj)}else{remove()}}}module.exports=function(list,options){options=options||{};if(!options.singleton&&typeof options.singleton!==\\"boolean\\"){options.singleton=isOldIE()}list=list||[];var lastIdentifiers=modulesToDom(list,options);return function update(newList){newList=newList||[];if(Object.prototype.toString.call(newList)!==\\"[object Array]\\"){return}for(var i=0;i<lastIdentifiers.length;i++){var identifier=lastIdentifiers[i];var index=getIndexByIdentifier(identifier);stylesInDom[index].references--}var newLastIdentifiers=modulesToDom(newList,options);for(var _i=0;_i<lastIdentifiers.length;_i++){var _identifier=lastIdentifiers[_i];var 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\\").concat(item[2])}}list.push(item)}};return list};function cssWithMappingToString(item,useSourceMap){var content=item[1]||\\"\\";var cssMapping=item[3];if(!cssMapping){return content}if(useSourceMap&&typeof btoa===\\"function\\"){var sourceMapping=toComment(cssMapping);var sourceURLs=cssMapping.sources.map((function(source){return\\"/*# sourceURL=\\".concat(cssMapping.sourceRoot||\\"\\").concat(source,\\" */\\")}));return[content].concat(sourceURLs).concat([sourceMapping]).join(\\"\\\\n\\")}return[content].join(\\"\\\\n\\")}function toComment(sourceMap){var base64=btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));var data=\\"sourceMappingURL=data:application/json;charset=utf-8;base64,\\".concat(base64);return\\"/*# \\".concat(data,\\" */\\")}},function(module,__webpack_exports__,__webpack_require__){__webpack_require__.r(__webpack_exports__);var ns=__kbnBundles__.get(\\"plugin/foo/public\\");Object.defineProperties(__webpack_exports__,Object.getOwnPropertyDescriptors(ns))},function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);var _node_modules_val_loader_dist_cjs_js_key_bar_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__=__webpack_require__(4);var _node_modules_val_loader_dist_cjs_js_key_bar_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0___default=__webpack_require__.n(_node_modules_val_loader_dist_cjs_js_key_bar_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__);__kbnBundles__.define(\\"plugin/bar/public\\",__webpack_require__,23)},function(module,exports,__webpack_require__){__webpack_require__.p=window.__kbnPublicPath__[\\"bar\\"]},function(module,exports,__webpack_require__){switch(window.__kbnThemeTag__){case\\"v7dark\\":return __webpack_require__(6);case\\"v7light\\":return __webpack_require__(8);case\\"v8dark\\":return __webpack_require__(10);case\\"v8light\\":return __webpack_require__(12)}},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(7);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"p {\\\\n  background-color: rebeccapurple; }\\\\n\\\\nbody {\\\\n  width: 10; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(9);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"p {\\\\n  background-color: rebeccapurple; }\\\\n\\\\nbody {\\\\n  width: 11; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(11);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"p {\\\\n  background-color: rebeccapurple; }\\\\n\\\\nbody {\\\\n  width: 12; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(13);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"p {\\\\n  background-color: rebeccapurple; }\\\\n\\\\nbody {\\\\n  width: 13; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){switch(window.__kbnThemeTag__){case\\"v7dark\\":return __webpack_require__(15);case\\"v7light\\":return __webpack_require__(17);case\\"v8dark\\":return __webpack_require__(19);case\\"v8light\\":return __webpack_require__(21)}},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(16);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"body {\\\\n  color: green; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(18);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"body {\\\\n  color: green; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(20);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"body {\\\\n  color: green; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,exports,__webpack_require__){var api=__webpack_require__(0);var content=__webpack_require__(22);content=content.__esModule?content.default:content;if(typeof content===\\"string\\"){content=[[module.i,content,\\"\\"]]}var options={};options.insert=\\"head\\";options.singleton=false;var update=api(content,options);module.exports=content.locals||{}},function(module,exports,__webpack_require__){var ___CSS_LOADER_API_IMPORT___=__webpack_require__(1);exports=___CSS_LOADER_API_IMPORT___(false);exports.push([module.i,\\"body {\\\\n  color: green; }\\\\n\\",\\"\\"]);module.exports=exports},function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);__webpack_require__.d(__webpack_exports__,\\"barLibFn\\",(function(){return barLibFn}));__webpack_require__.d(__webpack_exports__,\\"fooLibFn\\",(function(){return public_[\\"fooLibFn\\"]}));var styles=__webpack_require__(5);var public_0=__webpack_require__(14);var public_=__webpack_require__(2);function barLibFn(){return\\"bar\\"}}]);"`;
 
 exports[`prepares assets for distribution: baz bundle 1`] = `
 "/*! Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one or more contributor license agreements.
@@ -107,4 +107,4 @@ exports[`prepares assets for distribution: baz bundle 1`] = `
 
 exports[`prepares assets for distribution: foo async bundle 1`] = `"(window[\\"foo_bundle_jsonpfunction\\"]=window[\\"foo_bundle_jsonpfunction\\"]||[]).push([[1],{3:function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);__webpack_require__.d(__webpack_exports__,\\"foo\\",(function(){return foo}));function foo(){}}}]);"`;
 
-exports[`prepares assets for distribution: foo bundle 1`] = `"(function(modules){function webpackJsonpCallback(data){var chunkIds=data[0];var moreModules=data[1];var moduleId,chunkId,i=0,resolves=[];for(;i<chunkIds.length;i++){chunkId=chunkIds[i];if(Object.prototype.hasOwnProperty.call(installedChunks,chunkId)&&installedChunks[chunkId]){resolves.push(installedChunks[chunkId][0])}installedChunks[chunkId]=0}for(moduleId in moreModules){if(Object.prototype.hasOwnProperty.call(moreModules,moduleId)){modules[moduleId]=moreModules[moduleId]}}if(parentJsonpFunction)parentJsonpFunction(data);while(resolves.length){resolves.shift()()}}var installedModules={};var installedChunks={0:0};function jsonpScriptSrc(chunkId){return __webpack_require__.p+\\"foo.chunk.\\"+chunkId+\\".js\\"}function __webpack_require__(moduleId){if(installedModules[moduleId]){return installedModules[moduleId].exports}var module=installedModules[moduleId]={i:moduleId,l:false,exports:{}};modules[moduleId].call(module.exports,module,module.exports,__webpack_require__);module.l=true;return module.exports}__webpack_require__.e=function requireEnsure(chunkId){var promises=[];var installedChunkData=installedChunks[chunkId];if(installedChunkData!==0){if(installedChunkData){promises.push(installedChunkData[2])}else{var promise=new Promise((function(resolve,reject){installedChunkData=installedChunks[chunkId]=[resolve,reject]}));promises.push(installedChunkData[2]=promise);var script=document.createElement(\\"script\\");var onScriptComplete;script.charset=\\"utf-8\\";script.timeout=120;if(__webpack_require__.nc){script.setAttribute(\\"nonce\\",__webpack_require__.nc)}script.src=jsonpScriptSrc(chunkId);var error=new Error;onScriptComplete=function(event){script.onerror=script.onload=null;clearTimeout(timeout);var chunk=installedChunks[chunkId];if(chunk!==0){if(chunk){var errorType=event&&(event.type===\\"load\\"?\\"missing\\":event.type);var realSrc=event&&event.target&&event.target.src;error.message=\\"Loading chunk \\"+chunkId+\\" failed.\\\\n(\\"+errorType+\\": \\"+realSrc+\\")\\";error.name=\\"ChunkLoadError\\";error.type=errorType;error.request=realSrc;chunk[1](error)}installedChunks[chunkId]=undefined}};var timeout=setTimeout((function(){onScriptComplete({type:\\"timeout\\",target:script})}),12e4);script.onerror=script.onload=onScriptComplete;document.head.appendChild(script)}}return Promise.all(promises)};__webpack_require__.m=modules;__webpack_require__.c=installedModules;__webpack_require__.d=function(exports,name,getter){if(!__webpack_require__.o(exports,name)){Object.defineProperty(exports,name,{enumerable:true,get:getter})}};__webpack_require__.r=function(exports){if(typeof 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Object.prototype.hasOwnProperty.call(object,property)};__webpack_require__.p=\\"\\";__webpack_require__.oe=function(err){console.error(err);throw err};var jsonpArray=window[\\"foo_bundle_jsonpfunction\\"]=window[\\"foo_bundle_jsonpfunction\\"]||[];var oldJsonpFunction=jsonpArray.push.bind(jsonpArray);jsonpArray.push=webpackJsonpCallback;jsonpArray=jsonpArray.slice();for(var i=0;i<jsonpArray.length;i++)webpackJsonpCallback(jsonpArray[i]);var parentJsonpFunction=oldJsonpFunction;return __webpack_require__(__webpack_require__.s=0)})([function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);var _node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__=__webpack_require__(1);var _node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0___default=__webpack_require__.n(_node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__);__kbnBundles__.define(\\"plugin/foo/public\\",__webpack_require__,2)},function(module,exports,__webpack_require__){__webpack_require__.p=window.__kbnPublicPath__[\\"foo\\"]},function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);function fooLibFn(){return\\"foo\\"}var ext=\\"TRUE\\";__webpack_require__.d(__webpack_exports__,\\"getFoo\\",(function(){return getFoo}));__webpack_require__.d(__webpack_exports__,\\"fooLibFn\\",(function(){return fooLibFn}));__webpack_require__.d(__webpack_exports__,\\"ext\\",(function(){return ext}));function asyncGeneratorStep(gen,resolve,reject,_next,_throw,key,arg){try{var info=gen[key](arg);var value=info.value}catch(error){reject(error);return}if(info.done){resolve(value)}else{Promise.resolve(value).then(_next,_throw)}}function _asyncToGenerator(fn){return function(){var self=this,args=arguments;return new Promise((function(resolve,reject){var gen=fn.apply(self,args);function _next(value){asyncGeneratorStep(gen,resolve,reject,_next,_throw,\\"next\\",value)}function _throw(err){asyncGeneratorStep(gen,resolve,reject,_next,_throw,\\"throw\\",err)}_next(undefined)}))}}function getFoo(){return _getFoo.apply(this,arguments)}function _getFoo(){_getFoo=_asyncToGenerator(regeneratorRuntime.mark((function _callee(){return regeneratorRuntime.wrap((function _callee$(_context){while(1){switch(_context.prev=_context.next){case 0:_context.next=2;return __webpack_require__.e(1).then(__webpack_require__.bind(null,3));case 2:return _context.abrupt(\\"return\\",_context.sent);case 3:case\\"end\\":return _context.stop()}}}),_callee)})));return _getFoo.apply(this,arguments)}}]);"`;
+exports[`prepares assets for distribution: foo bundle 1`] = `"(function(modules){function webpackJsonpCallback(data){var chunkIds=data[0];var moreModules=data[1];var moduleId,chunkId,i=0,resolves=[];for(;i<chunkIds.length;i++){chunkId=chunkIds[i];if(Object.prototype.hasOwnProperty.call(installedChunks,chunkId)&&installedChunks[chunkId]){resolves.push(installedChunks[chunkId][0])}installedChunks[chunkId]=0}for(moduleId in moreModules){if(Object.prototype.hasOwnProperty.call(moreModules,moduleId)){modules[moduleId]=moreModules[moduleId]}}if(parentJsonpFunction)parentJsonpFunction(data);while(resolves.length){resolves.shift()()}}var installedModules={};var installedChunks={0:0};function jsonpScriptSrc(chunkId){return __webpack_require__.p+\\"foo.chunk.\\"+chunkId+\\".js\\"}function __webpack_require__(moduleId){if(installedModules[moduleId]){return installedModules[moduleId].exports}var module=installedModules[moduleId]={i:moduleId,l:false,exports:{}};modules[moduleId].call(module.exports,module,module.exports,__webpack_require__);module.l=true;return module.exports}__webpack_require__.e=function requireEnsure(chunkId){var promises=[];var installedChunkData=installedChunks[chunkId];if(installedChunkData!==0){if(installedChunkData){promises.push(installedChunkData[2])}else{var promise=new Promise((function(resolve,reject){installedChunkData=installedChunks[chunkId]=[resolve,reject]}));promises.push(installedChunkData[2]=promise);var script=document.createElement(\\"script\\");var onScriptComplete;script.charset=\\"utf-8\\";script.timeout=120;if(__webpack_require__.nc){script.setAttribute(\\"nonce\\",__webpack_require__.nc)}script.src=jsonpScriptSrc(chunkId);var error=new Error;onScriptComplete=function(event){script.onerror=script.onload=null;clearTimeout(timeout);var chunk=installedChunks[chunkId];if(chunk!==0){if(chunk){var errorType=event&&(event.type===\\"load\\"?\\"missing\\":event.type);var realSrc=event&&event.target&&event.target.src;error.message=\\"Loading chunk \\"+chunkId+\\" failed.\\\\n(\\"+errorType+\\": \\"+realSrc+\\")\\";error.name=\\"ChunkLoadError\\";error.type=errorType;error.request=realSrc;chunk[1](error)}installedChunks[chunkId]=undefined}};var timeout=setTimeout((function(){onScriptComplete({type:\\"timeout\\",target:script})}),12e4);script.onerror=script.onload=onScriptComplete;document.head.appendChild(script)}}return Promise.all(promises)};__webpack_require__.m=modules;__webpack_require__.c=installedModules;__webpack_require__.d=function(exports,name,getter){if(!__webpack_require__.o(exports,name)){Object.defineProperty(exports,name,{enumerable:true,get:getter})}};__webpack_require__.r=function(exports){if(typeof 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Object.prototype.hasOwnProperty.call(object,property)};__webpack_require__.p=\\"\\";__webpack_require__.oe=function(err){console.error(err);throw err};var jsonpArray=window[\\"foo_bundle_jsonpfunction\\"]=window[\\"foo_bundle_jsonpfunction\\"]||[];var oldJsonpFunction=jsonpArray.push.bind(jsonpArray);jsonpArray.push=webpackJsonpCallback;jsonpArray=jsonpArray.slice();for(var i=0;i<jsonpArray.length;i++)webpackJsonpCallback(jsonpArray[i]);var parentJsonpFunction=oldJsonpFunction;return __webpack_require__(__webpack_require__.s=0)})([function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);var _node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__=__webpack_require__(1);var _node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0___default=__webpack_require__.n(_node_modules_val_loader_dist_cjs_js_key_foo_kbn_ui_shared_deps_public_path_module_creator_js__WEBPACK_IMPORTED_MODULE_0__);__kbnBundles__.define(\\"plugin/foo/public\\",__webpack_require__,2)},function(module,exports,__webpack_require__){__webpack_require__.p=window.__kbnPublicPath__[\\"foo\\"]},function(module,__webpack_exports__,__webpack_require__){\\"use strict\\";__webpack_require__.r(__webpack_exports__);__webpack_require__.d(__webpack_exports__,\\"fooLibFn\\",(function(){return fooLibFn}));__webpack_require__.d(__webpack_exports__,\\"ext\\",(function(){return ext}));__webpack_require__.d(__webpack_exports__,\\"getFoo\\",(function(){return getFoo}));function fooLibFn(){return\\"foo\\"}var ext=\\"TRUE\\";function asyncGeneratorStep(gen,resolve,reject,_next,_throw,key,arg){try{var info=gen[key](arg);var value=info.value}catch(error){reject(error);return}if(info.done){resolve(value)}else{Promise.resolve(value).then(_next,_throw)}}function _asyncToGenerator(fn){return function(){var self=this,args=arguments;return new Promise((function(resolve,reject){var gen=fn.apply(self,args);function _next(value){asyncGeneratorStep(gen,resolve,reject,_next,_throw,\\"next\\",value)}function _throw(err){asyncGeneratorStep(gen,resolve,reject,_next,_throw,\\"throw\\",err)}_next(undefined)}))}}function getFoo(){return _getFoo.apply(this,arguments)}function _getFoo(){_getFoo=_asyncToGenerator(regeneratorRuntime.mark((function _callee(){return regeneratorRuntime.wrap((function _callee$(_context){while(1){switch(_context.prev=_context.next){case 0:_context.next=2;return __webpack_require__.e(1).then(__webpack_require__.bind(null,3));case 2:return _context.abrupt(\\"return\\",_context.sent);case 3:case\\"end\\":return _context.stop()}}}),_callee)})));return _getFoo.apply(this,arguments)}}]);"`;
diff --git a/src/plugins/data/public/public.api.md b/src/plugins/data/public/public.api.md
index b9d1af4b369af1..b8eb7a556ac445 100644
--- a/src/plugins/data/public/public.api.md
+++ b/src/plugins/data/public/public.api.md
@@ -1309,7 +1309,7 @@ export class IndexPatternSelect extends Component<IndexPatternSelectProps> {
     // (undocumented)
     componentWillUnmount(): void;
     // (undocumented)
-    debouncedFetch: _.DebouncedFunc<(searchValue: string) => Promise<void>>;
+    debouncedFetch: ((searchValue: string) => Promise<void>) & _.Cancelable;
     // (undocumented)
     fetchOptions: (searchValue?: string) => void;
     // (undocumented)
diff --git a/yarn.lock b/yarn.lock
index f25042d96c8b78..cbd6031b4d6357 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21292,7 +21292,7 @@ parse-link-header@^1.0.1:
   dependencies:
     xtend "~4.0.1"
 
-parse-ms@^2.0.0:
+parse-ms@^2.0.0, parse-ms@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/parse-ms/-/parse-ms-2.1.0.tgz#348565a753d4391fa524029956b172cb7753097d"
   integrity sha512-kHt7kzLoS9VBZfUsiKjv43mr91ea+U05EyKkEtqp7vNbHxmaVuEqN7XxeEVnGrMtYOAxGrDElSi96K7EgO1zCA==
@@ -21997,7 +21997,14 @@ pretty-hrtime@^1.0.0, pretty-hrtime@^1.0.3:
   resolved "https://registry.yarnpkg.com/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz#b7e3ea42435a4c9b2759d99e0f201eb195802ee1"
   integrity sha1-t+PqQkNaTJsnWdmeDyAesZWALuE=
 
-pretty-ms@*, pretty-ms@^4.0.0:
+pretty-ms@*:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pretty-ms/-/pretty-ms-7.0.0.tgz#45781273110caf35f55cab21a8a9bd403a233dc0"
+  integrity sha512-J3aPWiC5e9ZeZFuSeBraGxSkGMOvulSWsxDByOcbD1Pr75YL3LSNIKIb52WXbCLE1sS5s4inBBbryjF4Y05Ceg==
+  dependencies:
+    parse-ms "^2.1.0"
+
+pretty-ms@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/pretty-ms/-/pretty-ms-4.0.0.tgz#31baf41b94fd02227098aaa03bd62608eb0d6e92"
   integrity sha512-qG66ahoLCwpLXD09ZPHSCbUWYTqdosB7SMP4OffgTgL2PBKXMuUsrk5Bwg8q4qPkjTXsKBMr+YK3Ltd/6F9s/Q==