Type Alias: SlideMasterObject

SlideMasterObject = CommonObjectDescriptor | { chart: SlideMasterChartProps; } | { placeholder: { options: PlaceholderProps; text?: string; }; }

One object on a slide master, as a key-tagged descriptor.

The six descriptors it shares with a group child are CommonObjectDescriptor; the two below are the master's own — a chart, which a group cannot hold, and a placeholder, which is the whole point of a master.