Resolve nested variables

Provided data may be a nested array which can be resolved in the template:

$render->renderTemplateString(
    '{{ render.productRender.renderProductName(product.details.name) }}',
    [
        'product' => [
            'details' => [
                'name' => 'MyProduct',
            ],
        ],
        'render' => [
            'productRender' => new ProductRender(),
        ]
    ]
);