do
fun doLookup(gltf: GLTF2, time: Float, kind: GLTF2.Animation.Sampler.LookupKind, count: Int = 1): GLTF2AccessorVector
fun doLookup(gltf: GLTF2, time: Float, kind: GLTF2.Animation.Sampler.LookupKind, out: GLTF2AccessorVector, count: Int = 1, outIndex: Int = 0)