How do I start an empty breadcrumb? I am modifying a module that extends PathBasedBreadcrumbBuilder, but that only has methods to add a link at the end of the bread  and I want in certain cases to start the breadcrumb from scratch or add a link at the beginning of the breadcrumbs. 

How can I do this?
I'm looking at this documentation and I think it says that you could start from scratch using:

$breadcrumb = new Breadcrumb();


And the class:

use Drupal\Core\Breadcrumb\Breadcrumb