from __future__ import unicode_literals from django.dispatch import Signal post_version_upload = Signal(providing_args=('instance',), use_caching=True) post_document_type_change = Signal( providing_args=('instance',), use_caching=True ) post_document_created = Signal(providing_args=('instance',), use_caching=True) post_initial_document_type = Signal( providing_args=('instance',), use_caching=True )