syntax_data: {"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let mut hasher = DefaultHasher::new();
context_before:             TargetTuple::TargetJson { path_for_rustdoc: _, tuple, contents: content } => {
context_after:                 content.hash(&mut hasher);