src/Formio/Service/RoleService.php
public function getList(): array
    {
        $objects = $this->execute('GET', static::RESOURCE_LIST);
        $list = [];

        foreach ($objects as $name => $object) {
            $model = static::toModel($object);
            $list[] = $model;
        }

        return $list;
    }
public function getList(): array
    {
        $objects = $this->execute('GET', static::RESOURCE_LIST);
        $list = [];

        foreach ($objects as $name => $object) {
            $model = static::toModel($object);
            $list[] = $model;
        }

        return $list;
    }
Get role list

@return array