{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"|"}]}
                        | ObligationCauseCode::WhereClause(def_id, span),
                        ObligationCauseCode::WhereClauseInExpr(def_id, span, _, _)
                    ) if !span.is_dummy() => (*def_id, *span),