function getDumpsByUser getDumpsByUser(userId: string,page: number,limit: number,includePrivate: boolean,categoryId?: string): Page<Dump> Returns a page of userId's dumps, newest first, for GET /api/users/:key/dumps, optionally only those in categoryId. The route sets includePrivate when users ask for their own. Parameters userId: string page: number limit: number includePrivate: boolean optional categoryId: string Return Type Page<Dump> Throws APIException 500 when a row doesn't parse as a dump.