page.changeNum:after
$newPage, $oldPage
return [
    'hooks' => [
        'page.changeNum:after' => function ($newPage, $oldPage) {
            // your code goes here
        }
    ]
]$newPage, $oldPage
return [
    'hooks' => [
        'page.changeNum:after' => function ($newPage, $oldPage) {
            // your code goes here
        }
    ]
]