syntax_data: {"ast_node_type":"function","tokens":[{"end":67,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn output_path(&self, analysis_name: &str) -> Option<PathBuf> {
context_before:     /// "path/suffix.dot" -> "path/analysis_name_suffix.dot"
context_after:         let mut ret = self.basename_and_suffix.as_ref().cloned()?;