Include Guards in Jinja

[LeStahL]

Hey, quick question - I noticed that set and include do not work together in a way that allows the "include guard" pattern:

{%- if FBM_FRAG_J2 is not defined %}
{%- set FBM_FRAG_J2 = true %}
{# Guarded code goes here #}
{%- endif %}

I don't really have a good idea how to avoid duplicate (or recursive) includes without it - But I assume it must be possible somehow. What is the viable / intended strategy in jinja to achieve this?

[davidism]

Look up "namespace" in the docs.

[LeStahL]

thanks :)