Using Datastore in Orquesta Workflow

Hi, I am trying to use DataStore using "{{ st2kv.system.https_proxy }}" but when I run the workflow I get this error: JinjaEvaluationException: Unable to evaluate expression '{{ st2kv.system.https_proxy }}'. UndefinedError: 'functools.partial object' has no attribute 'system'

I raised a github ticket for the same and a member of the team solved my query

See the documentation here:
It needs to be `{{ st2kv('system.https_proxy') }}"`