Method mapUsers

examples/demo.php:3034–3034

@param \Closure(User): string $fn */

(\Closure $fn)

    /** @param \Closure(User): string $fn */
    public function mapUsers(\Closure $fn): array { return []; }

    /** @param callable(int, int): int $fn */
    public function reduce(callable $fn): int { return 0; }