{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
                // a path may be followed by a type annotation. E.g., `let pat:ty`. In type
                // a colon and still form a syntactically valid construct. In pattern contexts,
                // contexts, a path may be followed by a list of bounds. E.g., `where ty:bound`.