import { AnimationClip, Object3D, Skeleton } from 'three' export namespace SkeletonUtils { export function clone(source: Object3D): Object3D export function retarget(target: Object3D | Skeleton, source: Object3D | Skeleton, options: {}): void export function retargetClip( target: Skeleton | Object3D, source: Skeleton | Object3D, clip: AnimationClip, options: {}, ): AnimationClip }