Aaron Hart

+1, a schema would be quite nice to have considering the json format was identified as a key feature in the echarts paper.

Also worth considering may be [echarts](https://echarts.apache.org/en/index.html), which has a json format and an (auto-gen) pydantic model in [ezcharts](https://github.com/epi2me-labs/ezcharts/blob/master/generate-model.py). From my limited perspective, there are 2 possible advantages: * the chart...