feat: adding ability to get all keys matching a specific pattern. Add…

…ed functions to construct the service and template keys (#94)

* feat: adding ability to get all keys matching a specific pattern. Added functions to construct the service and template keys

* fix: formatting

* fix: add _cache_key post-fix to be consistent with function naming

* fix: remove unnecessary function

notifications_utils/clients/redis/__init__.py

@@ -9,6 +9,14 @@ def near_daily_limit_cache_key(service_id):
     return f"nearing-{daily_limit_cache_key(service_id)}"
 
 
+def template_version_cache_key(template_id, version=None):
+    return f"template-{template_id}-version-{version}"
+
+
+def service_cache_key(service_id):
+    return f"service-{service_id}"
+
+
 def over_daily_limit_cache_key(service_id):
     return f"over-{daily_limit_cache_key(service_id)}"