/**
 * PickByType
 * @desc From `T` pick a set of properties by value matching `ValueType`.
 * Credit: [Piotr Lewandowski](https://medium.com/dailyjs/typescript-create-a-condition-based-subset-types-9d902cea5b8c)
 * @example
 *   type Props = { req: number; reqUndef: number | undefined; opt?: string; };
 *
 *   // Expect: { req: number }
 *   type Props = PickByType<Props, number>;
 *   // Expect: { req: number; reqUndef: number | undefined; }
 *   type Props = PickByType<Props, number | undefined>;
 */
export type PickByType<T, ValueType> = Pick<
  T,
  { [Key in keyof T]-?: T[Key] extends ValueType ? Key : never }[keyof T]
>;