When using the CelerySignalProcessor we call registry_delete_task.

       @shared_task()
        def registry_delete_task(doc_label, data):
            doc_instance = import_module(doc_label)
            parallel = True
            doc_instance._bulk(bulk_data, parallel=parallel)

The parameter doc_label is one of my documents("MyIndex")

@registry.register_document
class MyIndex(Document):

The below line from registry_delete_task throws ModuleNotFoundError: No module named 'MyIndex' because MyIndex is not a module.

import_module('MyIndex')

sub issue: There exists a PR here to fix data parameter and rename it to what seems to be the correct name "bulk_data".. The bottom line of the function uses a variable(bulk_data) that does not exist in the function.