/** Update the fields of **`O`** with the ones of **`O1`**
 * (only the existing fields will be updated)
 * @param O to update
 * @param O1 to update with
 * @returns **`object`**
 * @example
 * ```ts
 * ```
 */
export type Overwrite<O extends object, O1 extends object> = {
    [K in keyof O]: K extends keyof O1
                    ? O1[K]
                    : O[K]
} & {}