Call to undefined drush_set_error

Problem/Motivation

I first installed 2.0 on my Drupal 8 site and tried to delete the nodes of a custom type using

drush dade --type=custom_content_type

And I get the error: Error: Call to undefined function Drupal\delete_all\Commands\drush_get_option() in Drupal\delete_all\Commands\DeleteAllCommands->allDeleteEntities()

So then I applied this patch: https://www.drupal.org/files/issues/2020-01-30/3110122-call-to-undefined..., and now I get the error Call to undefined function Drupal\delete_all\Commands\drush_set_error() in Drupal\delete_all\Commands\DeleteAllCommands->allDeleteEntities()

Steps to reproduce

run drush dade on custom entity type after applying this patch: https://www.drupal.org/files/issues/2020-01-30/3110122-call-to-undefined...