$ xcrun scntool --verbose
| Current SceneKit version is 4.560000
| Running scntool (compiled on Jul 1 2018 01:01:55)
usage: scntool --convert file --format format [--output file]
000084a8: 7363 7269 7074 696f 6e00 2d2d 7461 7267 6574 2d70 6c61 7466 :scription.--target-platf