<?php declare(strict_types = 1);

use function PHPStan\dumpType;
use function PHPStan\Testing\assertType;

/**
 * API interop.
 *
 * @template T
 * @phpstan-type ResponsePayload<T> array{
 *  data: T,
 *  links: ?array{
 *      self: string,
 *      first: string,
 *      last: string,
 *      next: string,
 *  },
 *  pager: ?array{
 *      total: int,
 *      current: int,
 *      limit: int,
 *  },
 * } API response template
 */

/** @return ResponsePayload<array> */
function x(): array {
    return ['data' => []];
}

function y(): array {
    $x = x()['data'];
    return $x;
}