fix: export the list of easing functions in the EasingDictionary type

Author: joshuaellis

packages/core/src/constants.ts

@@ -15,7 +15,37 @@ export const config = {
  * https://github.com/ai/easings.net/blob/master/src/easings/easingsFunctions.ts
  */
 interface EasingDictionary {
-  [easing: string]: EasingFunction
+  linear: (t: number) => number
+  easeInQuad: (t: number) => number
+  easeOutQuad: (t: number) => number
+  easeInOutQuad: (t: number) => number
+  easeInCubic: (t: number) => number
+  easeOutCubic: (t: number) => number
+  easeInOutCubic: (t: number) => number
+  easeInQuart: (t: number) => number
+  easeOutQuart: (t: number) => number
+  easeInOutQuart: (t: number) => number
+  easeInQuint: (t: number) => number
+  easeOutQuint: (t: number) => number
+  easeInOutQuint: (t: number) => number
+  easeInSine: (t: number) => number
+  easeOutSine: (t: number) => number
+  easeInOutSine: (t: number) => number
+  easeInExpo: (t: number) => number
+  easeOutExpo: (t: number) => number
+  easeInOutExpo: (t: number) => number
+  easeInCirc: (t: number) => number
+  easeOutCirc: (t: number) => number
+  easeInOutCirc: (t: number) => number
+  easeInBack: (t: number) => number
+  easeOutBack: (t: number) => number
+  easeInOutBack: (t: number) => number
+  easeInElastic: (t: number) => number
+  easeOutElastic: (t: number) => number
+  easeInOutElastic: (t: number) => number
+  easeInBounce: (t: number) => number
+  easeOutBounce: (t: number) => number
+  easeInOutBounce: (t: number) => number
 }
 
 const c1 = 1.70158