{"ast_node_type":"other","tokens":[{"end":124,"kind":"keyword","start":0,"text":"//"}]}
// A `$<name>` placeholder in the search pattern will match any AST node and `$<name>` will reference it in the replacement.
// The syntax for a structural search replace command is `<search_pattern> ==>> <replace_pattern>`.
// Within a macro call, a placeholder will match up until whatever token follows the placeholder.