7.5 #del

The template:

#set $a = 1
#del $a
#set $a = 2
#set $arr = [0, 1, 2]
#del $a, $arr[1]

In the generated class:

1  a = 1
2  del a
3  a = 2
4  arr = [0, 1, 2]
5  del a, arr[1]