### What problem does this PR solve?
Refactor Chat API
### Type of change
- [x] Refactoring
---------
Co-authored-by: liuhua <10215101452@stu.ecun.edu.cn>
### What problem does this PR solve?
Refactor Dataset API
### Type of change
- [x] Refactoring
---------
Co-authored-by: liuhua <10215101452@stu.ecun.edu.cn>
### What problem does this PR solve?
Complete implementation of dataset SDK.
#1102
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Feiue <10215101452@stu.ecun.edu.cn>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Added the ability to create and update dataset for SDK
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: root <root@xwg>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
You can use sdk to create a dataset
### Type of change
- [x] New Feature
---------
Co-authored-by: root <root@xwg>
