Minor updates to app sdk

backend/app_sdk/app_base.py

@@ -17,6 +17,7 @@ import http.client
 import urllib.parse
 import jinja2 
 import datetime
+import dateutil
 from io import StringIO as StringBuffer
 from io import BytesIO
 from liquid import Liquid, defaults
@@ -104,6 +105,18 @@ def base64_decode(a):
     except:
         return base64.b64decode(a)
 
+@shuffle_filters.register
+def json_parse(a):
+    return json.loads(str(a))
+
+@shuffle_filters.register
+def as_object(a):
+    return json.loads(str(a))
+
+@shuffle_filters.register
+def ast(a):
+    return ast.literal_eval(str(a))
+
 #print(standard_filter_manager.filters)
 #print(shuffle_filters.filters)
 #print(Liquid("{{ '10' | plus: 1}}", filters=shuffle_filters.filters).render())