### What problem does this PR solve?
Feat: Construct a dynamic variable assignment form #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add variable assignment node #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Submit clean data operations form data to the backend. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
