Returns data is Readonly<
{
args: Readonly<{ instance: JsonObj; modelType: string }> & Readonly<
{ [s: string]: JsonAble },
>;
toolName: Save;
},
> & Readonly<
{ action: Save; domain: string; modelName: string; toolName: Save },
>
True if the data is a save model data, false otherwise.
Checks if the data is a save model data.