syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"ty::GenericArgKind::Lifetime(_)"}]}
source_snippet:                         ty::GenericArgKind::Lifetime(_) => {}
context_before:                     match child.kind() {
context_after:                         ty::GenericArgKind::Type(_) | ty::GenericArgKind::Const(_) => {