1--TEST-- 2"for" tags can be nested 3--TEMPLATE-- 4{% for key, item in items %} 5* {{ key }} ({{ loop.length }}): 6{% for value in item %} 7 * {{ value }} ({{ loop.length }}) 8{% endfor %} 9{% endfor %} 10--DATA-- 11return ['items' => ['a' => ['a1', 'a2', 'a3'], 'b' => ['b1']]] 12--EXPECT-- 13* a (2): 14 * a1 (3) 15 * a2 (3) 16 * a3 (3) 17* b (2): 18 * b1 (1) 19