syntax_data: {"ast_node_type":"function","tokens":[{"end":79,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:         fn load_file(path: &Path) -> Result<(Target, TargetWarnings), String> {
context_after:             let contents = fs::read_to_string(path).map_err(|e| e.to_string())?;