The export groups.
The number of data rows the Results sheet will contain.
countExportRows([{ parent: p, variants: [v1, v2] }]); // => 3
export function countExportRows(groups: ExportGroup[]): number {
return groups.reduce((total, group) => total + 1 + group.variants.length, 0);
}
Total row count (parents + variants) across all groups.