id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
2741	Filter to check if a value/key exists inside a list/dict	napalm@…	Adrian Holovaty	"The summary fully describes the purpose of this filter.
In my opinion it's so simple and useful that it deserves to be together with the bundled filters.

Usage example:
{{{
#!xml
{% if node.id|in:open_nodes %}
  <!-- expand this node -->
{% endif %}
}}}
Filter definition:
{{{
#!python
@register.filter(name='in')
def inside(value, arg):
    return value in arg
}}}"	enhancement	closed	Template system	0.95	trivial	wontfix	filter template in	napalm@…	Unreviewed	0	0	0	0	0	0