I think you need to convert any non-str type into a string to render it in
the template, i.e., just str(foo).
https://github.com/apache/incubator-airflow/blob/1d3bb5470711a935b36b6a0ab4c7ec414d460d75/airflow/models.py#L2613
But in your template, if I understand correctly that you're building a
Hi All,
We have implemented a custom operator which is derived from baseOperator.
Custom operator takes a JSON argument. Some fields of this Json are string and
others are integer. We need to templatised the string fields only and not
integer. But on doing this we are getting the error
