Fix lint issues in F1 (#13373)

* Fix lint issues in F1

* Fix lint errors

f1/f1-tests.ts

@@ -0,0 +1,31 @@
+import F1 = require("f1");
+var ui = F1();
+
+ui.states({
+    out: {
+        itemToAnimate1: {
+            variableToAnimate: 0
+        },
+
+        itemToAnimate2: {
+            variableToAnimate: 0
+        }
+    },
+
+    idle: {
+        itemToAnimate1: {
+            variableToAnimate: 1
+        },
+
+        itemToAnimate2: {
+            variableToAnimate: 2
+        }
+    }
+});
+
+
+
+ui.transitions( [
+  { from: 'idle', to: 'rollOver', animation: { duration: 0.25 } },
+  { from: 'rollOver', to: 'idle', animation: { duration: 0.1 } }
+]);

f1/index.d.ts

@@ -6,8 +6,8 @@
 /// <reference types="node" />
 
 interface F1Options {
-	onState: void;
-	onUpdate: void;
+	onState?: (...args: any[]) => void;
+	onUpdate?: (...args: any[]) => void;
 
 	name: string;
 
@@ -27,10 +27,12 @@ interface F1 extends NodeJS.EventEmitter {
 	destroy(): void;
 	apply(): void;
 
-	go(state: string, callback?: void): F1;
+	go(state: string, callback?: (...args: any[]) => void): F1;
 	set(state: string): F1;
 	step(deltaTime: number): F1;
 	update(): F1;
 }
 
-declare function f1(settings?: F1Options): F1;
+declare function F1(settings?: F1Options): F1;
+
+export = F1;