syntax_data: {"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let file = self.new_source_file(path.to_owned().into(), text);
context_before:         let text = std::str::from_utf8(&bytes).unwrap_or("").to_string();
context_after:         Ok((