{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"InFileWrapper::new(self.file_id,"}]}
        InFileWrapper::new(self.file_id, f(self.value))
    pub fn map<F: FnOnce(T) -> U, U>(self, f: F) -> InFileWrapper<FileKind, U> {
    }