Fixed some types

Author: EmilianoSanchez

types/splitio.d.ts

@@ -268,7 +268,7 @@ interface IBasicSDK {
 }
 /****** Exposed namespace ******/
 /**
- * Shared types and interfaces for `@splitsoftware` packages for usage when integrating JavaScript SDKs with TypeScript.
+ * Shared types and interfaces for `@splitsoftware` packages, to support integrating JavaScript SDKs with TypeScript.
  */
 declare namespace SplitIO {
   /**
@@ -380,25 +380,30 @@ declare namespace SplitIO {
   type MockedFeaturesMap = {
     [featureName: string]: string | TreatmentWithConfig;
   };
+  /**
+   * Impression DTO generated by the SDK when processing evaluations.
+   * @typedef {Object} ImpressionDTO
+   */
+  type ImpressionDTO = {
+    feature: string;
+    keyName: string;
+    treatment: string;
+    time: number;
+    bucketingKey?: string;
+    label: string;
+    changeNumber: number;
+    pt?: number;
+  }
   /**
    * Object with information about an impression. It contains the generated impression DTO as well as
    * complementary information around where and how it was generated in that way.
    * @typedef {Object} ImpressionData
    */
   type ImpressionData = {
-    impression: {
-      feature: string;
-      keyName: string;
-      treatment: string;
-      time: number;
-      bucketingKey?: string;
-      label: string;
-      changeNumber: number;
-      pt?: number;
-    };
+    impression: ImpressionDTO;
     attributes?: SplitIO.Attributes;
-    ip: string;
-    hostname: string;
+    ip: string | false;
+    hostname: string | false;
     sdkLanguageVersion: string;
   };
   /**
@@ -451,10 +456,10 @@ declare namespace SplitIO {
     defaultTreatment: string;
   };
   /**
-   * A promise that resolves to a feature flag view.
-   * @typedef {Promise<SplitView>} SplitView
+   * A promise that resolves to a feature flag view or null if the feature flag is not found.
+   * @typedef {Promise<SplitView | null>} SplitViewAsync
    */
-  type SplitViewAsync = Promise<SplitView>;
+  type SplitViewAsync = Promise<SplitView | null>;
   /**
    * An array containing the SplitIO.SplitView elements.
    */
@@ -478,15 +483,14 @@ declare namespace SplitIO {
    * Storage for synchronous (standalone) SDK.
    * Its interface details are not part of the public API.
    */
-  type StorageSync = {};
+  type StorageSync = any;
   /**
    * Storage builder for synchronous (standalone) SDK.
-   * By returning undefined, the SDK will use the default IN MEMORY storage.
    * Input parameter details are not part of the public API.
    */
   type StorageSyncFactory = {
     readonly type: StorageType;
-    (params: {}): (StorageSync | undefined);
+    (params: any): (StorageSync | undefined);
   }
   /**
    * Configuration params for `InLocalStorage`
@@ -503,14 +507,14 @@ declare namespace SplitIO {
    * Storage for asynchronous (consumer) SDK.
    * Its interface details are not part of the public API.
    */
-  type StorageAsync = {}
+  type StorageAsync = any
   /**
    * Storage builder for asynchronous (consumer) SDK.
    * Input parameter details are not part of the public API.
    */
   type StorageAsyncFactory = {
-    readonly type: 'PLUGGABLE';
-    (params: {}): StorageAsync;
+    readonly type: StorageType;
+    (params: any): StorageAsync;
   }
   /**
    * Configuration params for `PluggableStorage`
@@ -564,15 +568,15 @@ declare namespace SplitIO {
    * SDK integration instance.
    * Its interface details are not part of the public API.
    */
-  type Integration = {};
+  type Integration = any;
   /**
    * SDK integration factory.
    * By returning an integration, the SDK will queue events and impressions into it.
    * Input parameter details are not part of the public API.
    */
   type IntegrationFactory = {
     readonly type: string;
-    (params: {}): (Integration | void);
+    (params: any): (Integration | void);
   }
   /**
    * A pair of user key and it's trafficType, required for tracking valid Split events.
@@ -594,7 +598,7 @@ declare namespace SplitIO {
     properties?: Properties;
     trafficTypeName?: string;
     key?: string;
-    timestamp?: number;
+    timestamp: number;
   };
   /**
    * Object representing the data sent by Split (events and impressions).