diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 862e583..c4defdf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,6 +28,9 @@ jobs:
       - name: npm Check
         run: npm run check
 
+      - name: npm TS tests
+        run: npm run test-ts-decls
+
       - name: npm Test
         run: npm run test
 
diff --git a/package.json b/package.json
index e215c95..71a3175 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
   ],
   "scripts": {
     "test": "jest",
+    "test-ts-decls": "tsc --build ts-tests",
     "check": "npm run check:lint && npm run check:types && npm run check:version",
     "check:lint": "eslint \"**/*.{js,ts,tsx}\"",
     "check:types": "tsc --noEmit",
diff --git a/ts-tests/index.ts b/ts-tests/index.ts
new file mode 100644
index 0000000..76f5699
--- /dev/null
+++ b/ts-tests/index.ts
@@ -0,0 +1,87 @@
+///<reference types="../types" />
+///<reference types="../types/full" />
+
+import {
+  SplitFactory as SplitFactoryFull,
+  DebugLogger as DebugLoggerFull,
+  InfoLogger as InfoLoggerFull,
+  WarnLogger as WarnLoggerFull,
+  ErrorLogger as ErrorLoggerFull,
+} from '@splitsoftware/splitio-react-native/full';
+import { SplitFactory, DebugLogger, InfoLogger, WarnLogger, ErrorLogger, LocalhostFromObject } from '@splitsoftware/splitio-react-native';
+
+const fullReactNativeConfig: SplitIO.IReactNativeSettings = {
+  core: {
+    authorizationKey: 'api-key',
+    key: 'some-key',
+    labelsEnabled: false,
+  },
+  scheduler: {
+    featuresRefreshRate: 1,
+    impressionsRefreshRate: 1,
+    impressionsQueueSize: 1,
+    telemetryRefreshRate: 1,
+    segmentsRefreshRate: 1,
+    offlineRefreshRate: 1,
+    eventsPushRate: 1,
+    eventsQueueSize: 1,
+    pushRetryBackoffBase: 1,
+  },
+  startup: {
+    readyTimeout: 1,
+    requestTimeoutBeforeReady: 1,
+    retriesOnFailureBeforeReady: 1,
+    eventsFirstPushWindow: 1,
+  },
+  urls: {
+    sdk: 'https://asd.com/sdk',
+    events: 'https://asd.com/events',
+    auth: 'https://asd.com/auth',
+    streaming: 'https://asd.com/streaming',
+    telemetry: 'https://asd.com/telemetry',
+  },
+  features: {
+    feature1: 'treatment',
+  },
+  // @TODO should not let to define a storage
+  impressionListener: {
+    logImpression: (data: SplitIO.ImpressionData) => {
+      console.log(data);
+    },
+  },
+  debug: DebugLogger(),
+  // @TODO shold fail
+  integrations: [],
+  streamingEnabled: true,
+  sync: {
+    splitFilters: [
+      { type: 'byName', values: ['my_split_1', 'my_split_1'] },
+      { type: 'byPrefix', values: ['my_split', 'test_split_'] },
+    ],
+    impressionsMode: 'DEBUG',
+    localhostMode: LocalhostFromObject(),
+    enabled: true,
+  },
+  userConsent: 'GRANTED',
+};
+
+fullReactNativeConfig.debug = InfoLogger();
+fullReactNativeConfig.debug = WarnLogger();
+fullReactNativeConfig.debug = ErrorLogger();
+fullReactNativeConfig.debug = DebugLoggerFull();
+fullReactNativeConfig.debug = InfoLoggerFull();
+fullReactNativeConfig.debug = WarnLoggerFull();
+fullReactNativeConfig.debug = ErrorLoggerFull();
+
+const sdkSlim = SplitFactory(fullReactNativeConfig);
+const sdkFull = SplitFactoryFull(fullReactNativeConfig);
+
+let client: SplitIO.IClient = sdkSlim.client();
+client = sdkSlim.client('other key');
+client = sdkFull.client();
+client = sdkFull.client('other key');
+console.log(client);
+
+let manager: SplitIO.IManager = sdkSlim.manager();
+manager = sdkFull.manager();
+console.log(manager);
diff --git a/ts-tests/tsconfig.json b/ts-tests/tsconfig.json
new file mode 100644
index 0000000..29bc676
--- /dev/null
+++ b/ts-tests/tsconfig.json
@@ -0,0 +1,29 @@
+{
+  "compilerOptions": {
+    "baseUrl": "./",
+    "allowUnreachableCode": false,
+    "allowUnusedLabels": false,
+    "esModuleInterop": true,
+    // "importsNotUsedAsValues": "error",
+    "forceConsistentCasingInFileNames": true,
+    "jsx": "react",
+    "lib": [
+      "esnext",
+      "DOM"
+    ],
+    "module": "esnext",
+    "moduleResolution": "node",
+    "noImplicitUseStrict": false,
+    "noStrictGenericChecks": false,
+    "noUnusedLocals": true,
+    // "noUnusedParameters": true,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "target": "esnext",
+    "noEmit": true,
+  },
+  "files": [
+    "index"
+  ]
+}
diff --git a/types/full/index.d.ts b/types/full/index.d.ts
index 13bf73d..8837329 100644
--- a/types/full/index.d.ts
+++ b/types/full/index.d.ts
@@ -3,9 +3,8 @@
 // Definitions by: Nico Zelaya <https://github.com/NicoZelaya/>
 
 /// <reference path="../splitio.d.ts" />
-export = JsSdk;
 
-declare module JsSdk {
+declare module '@splitsoftware/splitio-react-native/full' {
   /**
    * Full version of the Split.io sdk factory function.
    *
diff --git a/types/index.d.ts b/types/index.d.ts
index 655da3e..389c0cb 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -3,9 +3,8 @@
 // Definitions by: Nico Zelaya <https://github.com/NicoZelaya/>
 
 /// <reference path="./splitio.d.ts" />
-export = JsSdk;
 
-declare module JsSdk {
+declare module '@splitsoftware/splitio-react-native' {
   /**
    * Slim version of the Split.io sdk factory function.
    *
diff --git a/types/splitio.d.ts b/types/splitio.d.ts
index 454c77b..3493d1c 100644
--- a/types/splitio.d.ts
+++ b/types/splitio.d.ts
@@ -212,7 +212,7 @@ interface ISharedSettings {
      * Possible values are 'DEBUG' and 'OPTIMIZED'.
      * - DEBUG: will send all the impressions generated (recommended only for debugging purposes).
      * - OPTIMIZED: will send unique impressions to Split Servers avoiding a considerable amount of traffic that duplicated impressions could generate.
-     * @property {String} impressionsMode
+     * @property {string} impressionsMode
      * @default 'OPTIMIZED'
      */
     impressionsMode?: SplitIO.ImpressionsMode,
@@ -379,7 +379,7 @@ declare namespace SplitIO {
    */
   type Event = 'init::timeout' | 'init::ready' | 'init::cache-ready' | 'state::update';
   /**
-   * Split attributes should be on object with values of type string or number (dates should be sent as millis since epoch).
+   * Split attributes should be on object with values of type string, boolean, number (dates should be sent as millis since epoch) or array of strings or numbers.
    * @typedef {Object.<AttributeType>} Attributes
    * @see {@link https://help.split.io/hc/en-us/articles/4406066357901#attribute-syntax}
    */
@@ -393,7 +393,7 @@ declare namespace SplitIO {
   type AttributeType = string | number | boolean | Array<string | number>;
   /**
    * Split properties should be an object with values of type string, number, boolean or null. Size limit of ~31kb.
-   * @typedef {Object.<number, string, boolean, null>} Attributes
+   * @typedef {Object.<number, string, boolean, null>} Properties
    * @see {@link https://help.split.io/hc/en-us/articles/4406066357901#track
    */
   type Properties = {
@@ -482,10 +482,10 @@ declare namespace SplitIO {
     }
   };
   /**
-   * A promise that will be resolved with that SplitView.
-   * @typedef {Promise<SplitView>} SplitView
+   * A promise that will be resolved with that SplitView or null if the split is not found.
+   * @typedef {Promise<SplitView | null>} SplitView
    */
-  type SplitViewAsync = Promise<SplitView>;
+  type SplitViewAsync = Promise<SplitView | null>;
   /**
    * An array containing the SplitIO.SplitView elements.
    */
@@ -848,7 +848,7 @@ declare namespace SplitIO {
 
   /**
    * This represents the interface for the Client instance with synchronous storage for server-side SDK, where we don't have only one key.
-   * @interface IClient
+   * @interface IClientSS
    * @extends IBasicClient
    */
   interface IClientSS extends IBasicClient {
@@ -903,7 +903,7 @@ declare namespace SplitIO {
   }
   /**
    * This represents the interface for the Client instance with asynchronous storage for server-side SDK, where we don't have only one key.
-   * @interface IAsyncClient
+   * @interface IAsyncClientSS
    * @extends IBasicClient
    */
   interface IAsyncClientSS extends IBasicClient {
@@ -1062,20 +1062,20 @@ declare namespace SplitIO {
      * @function names
      * @returns {SplitNames} The lists of Split names.
      */
-    names(): SplitNames,
+    names(): SplitNames;
     /**
      * Get the array of splits data in SplitView format.
      * @function splits
      * @returns {SplitViews} The list of SplitIO.SplitView.
      */
-    splits(): SplitViews,
+    splits(): SplitViews;
     /**
      * Get the data of a split in SplitView format.
      * @function split
      * @param {string} splitName The name of the split we wan't to get info of.
-     * @returns {SplitView} The SplitIO.SplitView of the given split.
+     * @returns {SplitView | null} The SplitIO.SplitView of the given split or null if the split is not found.
      */
-    split(splitName: string): SplitView,
+    split(splitName: string): SplitView | null;
   }
   /**
    * Representation of a manager instance with asynchronous storage of the SDK.
@@ -1088,19 +1088,19 @@ declare namespace SplitIO {
      * @function names
      * @returns {SplitNamesAsync} A promise that will resolve to the array of Splitio.SplitNames.
      */
-    names(): SplitNamesAsync,
+    names(): SplitNamesAsync;
     /**
      * Get the array of splits data in SplitView format.
      * @function splits
      * @returns {SplitViewsAsync} A promise that will resolve to the SplitIO.SplitView list.
      */
-    splits(): SplitViewsAsync,
+    splits(): SplitViewsAsync;
     /**
      * Get the data of a split in SplitView format.
      * @function split
      * @param {string} splitName The name of the split we wan't to get info of.
-     * @returns {SplitViewAsync} A promise that will resolve to the SplitIO.SplitView value.
+     * @returns {SplitViewAsync} A promise that will resolve to the SplitIO.SplitView value or null if the split is not found.
      */
-    split(splitName: string): SplitViewAsync,
+    split(splitName: string): SplitViewAsync;
   }
 }