syntax_data: {"ast_node_type":"function","tokens":[{"end":89,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn try_print_visible_def_path(&mut self, def_id: DefId) -> Result<bool, PrintError> {
context_before:     /// declared with an `extern crate`, the path is guaranteed to use the `extern crate`.
context_after:         if with_no_visible_paths() {