syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: ///   case none exist, the local is considered to be always live.
context_before: /// - a local is live until we encounter a `StorageDead` statement. In
context_after: /// - a local has to be stored if it is either directly used after the