{"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
    /// using `let mut uses = IndexVec::from_elem(vec![], &body.local_decls);`
    /// For example, if you want to store data for each local in a MIR body,
    /// ensures that `uses` is an `IndexVec<Local, _>`, and thus can give