syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"Variants::Multiple"}]}
source_snippet:         Variants::Multiple { variants, tag, tag_encoding, .. } => {
context_before:         }
context_after:             if let TagEncoding::Niche { niche_start, untagged_variant, niche_variants } =