Type Alias ClassicGroupType

ClassicGroupType:
    | "area"
    | "bar"
    | "line"
    | "pie"
    | "doughnut"
    | "ofPie"
    | "scatter"
    | "bubble"
    | "radar"
    | "stock"
    | "surface"

A classic chart type: the DrawingML element is this name plus Chart, or 3DChart when Group.is3D is set.