{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"#[label(hir_analysis_bound_on_assoc_const_label)]"}]}
    #[label(hir_analysis_bound_on_assoc_const_label)]
    pub def_span: Span,
    pub bound_on_assoc_const_label: Option<Span>,