export type Row<
    L extends number,
    T extends any[] = []
> = T["length"] extends L ? T : Row<L, [string, ...T]>;
export type Builder = <Count extends number, Loaded, Sized extends Row<Count>>(params:
{
    path:string,
    cols:Count,
    load:(commitLoad:(id:string, data:Loaded)=>Sized, ...args:Sized)=>[id:string, data:Loaded],
    save:(commitSave:(...args:Sized)=>Sized, internal:Loaded) => Sized
}) => {
    list:Record<string, Loaded>,
    load:()=>Promise<void>,
    save:()=>Promise<void>
}