How to correctly infer a type based on another type in ColumnMeta?

[mvtbum]

I'm trying to extend @tanstack/react-table by declaring a ColumnMeta interface where filterKey should have a type that depends on filterType. Specifically, I have a mapping like this:

type FilterKeyTypeMap = {
  Text: string;
  Number: string;
  DateRange: string[];
  NumberRange: string[];
};

Here's my module declaration:

declare module '@tanstack/react-table' {
  interface ColumnMeta<TData extends RowData, TValue> {
    filterType?: keyof FilterKeyTypeMap;
    filterKey?: ???; // How to correctly infer this type based on filterType?
  }
}

I want filterKey to be typed as follows:

• If filterType is 'Text' or 'Number', then filterKey should be string.
• If filterType is 'DateRange' or 'NumberRange', then filterKey should be string[].

How can I properly type filterKey so that TypeScript enforces the correct type based on filterType, while keeping ColumnMeta as an interface?

Any guidance or suggestions would be appreciated! 🚀