WebAnimation tutorial no longer compiling

[tomdye]

The zombie web animation tutorial is no longer compiling.
Initial error looks to be because effects now expects a function rather than an array.
There may be further issues.

errors:
/home/simon/Downloads/008_animations-finished/008_animations/finished/zombies/src/widgets/Zombies.ts
[tsl] ERROR in /home/simon/Downloads/008_animations-finished/008_animations/finished/zombies/src/widgets/Zombies.ts(108,20)
      TS2322: Type '({ id: string; effects: { opacity: number; marginTop: string; marginLeft: string; }[]; timing: { ...' is not assignable to type 'AnimationProperties[]'.
  Type '{ id: string; effects: { opacity: number; marginTop: string; marginLeft: string; }[]; timing: { d...' is not assignable to type 'AnimationProperties'.
    Type '{ id: string; effects: { opacity: number; marginTop: string; marginLeft: string; }[]; timing: { d...' is not assignable to type 'AnimationProperties'.
      Types of property 'effects' are incompatible.
        Type '{ opacity: number; marginTop: string; marginLeft: string; }[]' is not assignable to type '(() => AnimationKeyFrame | AnimationKeyFrame[]) | AnimationKeyFrame | AnimationKeyFrame[]'.
          Type '{ opacity: number; marginTop: string; marginLeft: string; }[]' is not assignable to type 'AnimationKeyFrame[]'.
            Type '{ opacity: number; marginTop: string; marginLeft: string; }' is not assignable to type 'AnimationKeyFrame'.
              Object literal may only specify known properties, and 'marginTop' does not exist in type 'AnimationKeyFrame'.