https://github.com/WWBN/AVideo/issues/8713

node_modules/three/examples/jsm/utils/SkeletonUtils.d.ts

@@ -0,0 +1,32 @@
+import { AnimationClip, Bone, Matrix4, Object3D, Skeleton, SkeletonHelper } from '../../../src/Three';
+
+export namespace SkeletonUtils {
+	export function retarget( target: Object3D | Skeleton,
+					 source: Object3D | Skeleton,
+					 options: {} ): void;
+
+	export function retargetClip( target: Skeleton | Object3D,
+							 source: Skeleton | Object3D,
+							 clip: AnimationClip,
+							 options: {} ): AnimationClip;
+
+	export function getHelperFromSkeleton( skeleton: Skeleton ): SkeletonHelper;
+
+	export function getSkeletonOffsets( target: Object3D | Skeleton,
+										 source: Object3D | Skeleton,
+										 options: {} ): Matrix4[];
+
+	export function renameBones( skeleton: Skeleton, names: {} ): any;
+
+	export function getBones( skeleton: Skeleton | Bone[] ): Bone[];
+
+	export function getBoneByName( name: string, skeleton: Skeleton ): Bone;
+
+	export function getNearestBone( bone: Bone, names: {} ): Bone;
+
+	export function findBoneTrackData( name: string, tracks: any[] ): {};
+
+	export function getEqualsBonesNames( skeleton: Skeleton, targetSkeleton: Skeleton ): string[];
+
+	export function clone( source: Object3D ): Object3D;
+}