diff --git a/cacheback/utils.py b/cacheback/utils.py
index <HASH>..<HASH> 100644
--- a/cacheback/utils.py
+++ b/cacheback/utils.py
@@ -1,4 +1,5 @@
 import logging
+import warnings
 
 from django.conf import settings
 from django.core import signals
@@ -24,6 +25,14 @@ except ImportError as exc:
 logger = logging.getLogger('cacheback')
 
 
+class RemovedInCacheback13Warning(DeprecationWarning):
+    pass
+
+
+def warn_deprecation(message, exc=RemovedInCacheback13Warning):
+    warnings.warn(message, exc)
+
+
 def get_cache(backend, **kwargs):
     """
     Compatibilty wrapper for getting Django's cache backend instance
Add helper to easy raise warnings for deprecated imports/calls.