syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Foo<Bar<isize>> => { Foo<Bar<isize>>, Bar<isize>, isize }
context_before:     /// isize => { isize }
context_after:     /// [isize] => { [isize], isize }