public function testConvertValueKey()
{
$type = 'keyValue';
$val = ['partitionId' => ['namespaceId' => 'bar'], 'path' => [['kind' => 'kind', 'id' => '2']]];
$res = $this->mapper->convertValue($type, $val);
$this->assertInstanceOf(Key::class, $res);
$arr = $res->keyObject();
$this->assertEquals('bar', $arr['partitionId']['namespaceId']);
$this->assertEquals([['kind' => 'kind', 'id' => '2']], $arr['path']);
}