syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"unique_symbols_rev.insert((Namespace::ValueNS,"}]}
source_snippet:             unique_symbols_rev.insert((Namespace::ValueNS, *symbol), None);
context_before:             unique_symbols_rev.insert((Namespace::TypeNS, *symbol), None);
context_after:             unique_symbols_rev.insert((Namespace::MacroNS, *symbol), None);