text: from django.apps import apps
  
  from mayan.apps.document_indexing.tasks import task_index_document
  
  from .settings import setting_auto_process
  
  
  def handler_index_document_file(sender, **kwargs):
      task_index_document.apply_async(
          kwargs=dict(document_id=kwargs['instance'].document.pk)
      )
  
  
  def handler_initialize_new_document_type_settings(sender, instance, **kwargs):
      DocumentTypeSettings = apps.get_model(
          app_label='file_metadata', model_name='DocumentTypeSettings'
      )
  
      if kwargs['created']:
          DocumentTypeSettings.objects.create(
              auto_process=setting_auto_process.value, document_type=instance
          )
  
  
  def handler_process_document_file(sender, instance, **kwargs):
      if instance.document.document_type.file_metadata_settings.auto_process:
          instance.submit_for_file_metadata_processing()
  