Allows functions.d.ts to be committed, and dissallows index.d.ts to be committed.

Author: Brendan Ingham

.gitignore

@@ -23,7 +23,7 @@ src/platforms/android/include.gradle
 !src/platforms/web/typings/firebase-webapi.d.ts
 !src/platforms/ios/typings/*.d.ts
 !src/platforms/android/typings/**/*.d.ts
-!src/functions/index.d.ts
+!src/functions/functions.d.ts
 !src/scripts/*.js
 !demo/karma.conf.js
 demo/*.d.ts

src/functions/functions.d.ts

@@ -0,0 +1,2 @@
+export declare type HttpsCallable<I, O> = ( callableData: I ) => Promise<O>;
+export declare function httpsCallable<I = {}, O = {}>(functionName: string): HttpsCallable<I, O>;