syntax_data: {"ast_node_type":"variable","tokens":[{"end":76,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let major = c.name("major").unwrap().as_str().parse().context("major")?;
context_before:     // there
context_after:     let minor = c.name("minor").unwrap().as_str().parse().context("minor")?;