How do I properly document the type of functions passed as arguments, without extracting them to another type?

/**
 *
 * Adds equality functions to a data object. This freezes an object.
 * HashCode is lazily evaluated and memoized.
 *
 * @param <D> The type of the data object
 * @param data The data object to add equality to
 * @param equals The equality function
 * @param hashCode The hash code function
 *
 * @returns The data object with equality added
 */
export default function <D extends Record<string, unknown>>(
  data: D,
  equals: (a: D, b: D) => boolean,
  hashCode: (data: D) => number
): D & HasEquals {
    // ....
}