syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"Some(\"v0\")"}]}
source_snippet:             Some("v0") => Some(SymbolManglingVersion::V0),
context_before:             Some("legacy") => Some(SymbolManglingVersion::Legacy),
context_after:             Some("hashed") => Some(SymbolManglingVersion::Hashed),