EasyPost\User::retrieve PHP Method

    public static function retrieve($id, $apiKey = null)
    {
        return self::_retrieve(get_class(), $id, $apiKey);
    }

    $child = \EasyPost\User::retrieve($me->children[0]->id);
    $child_keys = $child->api_keys();
    print_r($child);
}
if (EDIT_ME) {
    $me = \EasyPost\User::retrieve_me();
    $me->name = "My New Name";
    $me->email = "*****@*****.**";
    $me->recharge_threshold = 5000;
    try {
        $me->save();
    } catch (Exception $e) {
        $e->prettyPrint();
    }
    print_r($me);
}
if (EDIT_CHILD) {
    $me = \EasyPost\User::retrieve_me();
    $child = \EasyPost\User::retrieve($me->children[0]->id);
    $child_keys = $child->api_keys();
    // retrieve the child with its own api key
    $child = \EasyPost\User::retrieve_me($child_keys["production"]);
    $child->name = "Child New Name";
    $child->email = "*****@*****.**";
    try {
        $child->save();
    } catch (Exception $e) {
        $e->prettyPrint();
    }
    print_r($child);
}