{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "EmbeddedChart",
  "type": "object",
  "description": "A chart embedded in a sheet.",
  "properties": {
    "chartId": {
      "type": "integer",
      "description": "The ID of the chart."
    },
    "spec": {
      "type": "object",
      "description": "The specification of the chart."
    }
  }
}