Results 3 issues of JierunChen

## 🌱 Describe your Feature Request Coremltools 5.2 only supports tensor assignment with exactly 1 pure dimension selection. I'm trying to convert a model from pytorch to coreml, which involves...

enhancement
triaged
pytorch

**Describe** I follow the README steps to run the KOSMOS-2 demo locally. However, when I choose an image and click the "run" button. The code keeps running without returning any...