code: def test_bool_select(env_async, items):
      tmpl = env_async.from_string('{{ items()|select|join("|") }}')
      assert tmpl.render(items=items) == "1|2|3|4|5"
  
imports: from collections import namedtuple
  import pytest
  from jinja2 import Environment
  from jinja2.utils import Markup
label_desc: Use image node_id 15 for calling a global function with example usage: test_bool_select(env_async, items) without return types