I have interface CountersData that I would like to model off of my JSON data. As seen below, I have a nested id (in example below 1830 and 1835 are ids) property that is a array of a nested dictionaries, which I also want to be optional.

I have been unable to make it optional, so I am unable to fetch the proper data. How should this data be formatted? See below my code and the JSON format.

interface CountersData {
  //other properties

  //want this to be optional
  [id: number]: {
    count_targets: number;
    count_targets_excluded: number;
    count_targets_pending: number;
    count_targets_in_progress: number;
    count_targets_completed: number;
    count_targets_failed: number;
  }[];

  [key: string]: number | string | any | undefined;
}