calckey/packages/backend/src/misc/is-quote.ts

import type { Note } from "@/models/entities/note.js";

export default function (note: Note): boolean {
	return (
		note.renoteId != null &&
		(note.text != null ||
			note.hasPoll ||
			(note.fileIds != null && note.fileIds.length > 0))
	);
}