feat: Fluent UI Outlook Lite + connections mockup

node_modules/tabster/dist/dts/State/Subscribable.d.ts

@@ -0,0 +1,17 @@
+/*!
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+import * as Types from "../Types";
+export declare abstract class Subscribable<A, B = undefined> implements Types.Subscribable<A, B> {
+    protected _val: A | undefined;
+    private _callbacks;
+    dispose(): void;
+    subscribe(callback: Types.SubscribableCallback<A, B>): void;
+    subscribeFirst(callback: Types.SubscribableCallback<A, B>): void;
+    unsubscribe(callback: Types.SubscribableCallback<A, B>): void;
+    protected setVal(val: A, detail: B): void;
+    protected getVal(): A | undefined;
+    protected trigger(val: A, detail: B): void;
+    private _callCallbacks;
+}