Function timestampToDateTransform

timestampToDateTransform<
    T extends { [k in string
    | number
    | symbol]?: null | number },
    K extends string | number | symbol,
>(
    propName: K,
): (this: T) => ImmutableDate | Extract<T[K], undefined | null>
Transforms a timestamp number to a Date (getter).
Type Parameters
- T extends { [k in string | number | symbol]?: null | number }
- K extends string | number | symbol
Parameters
- propName: K
  The name of the property to transform
Returns (this: T) => ImmutableDate | Extract<T[K], undefined | null>
A function that transforms the timestamp property into a Date