1(method "end" @end) @indent
 2(class "end" @end) @indent
 3(module "end" @end) @indent
 4(begin "end" @end) @indent
 5(do_block "end" @end) @indent
 6
 7(then) @indent
 8(call) @indent
 9
10(ensure) @outdent
11(rescue) @outdent
12(else) @outdent
13
14
15(_ "[" "]" @end) @indent
16(_ "{" "}" @end) @indent
17(_ "(" ")" @end) @indent