{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"}"}]}
                } else if is_pwr2minus1(niches) {
                    format_to!(label, "niches = 2{} + 1, ", pwr2_to_exponent(niches - 1));
                    format_to!(label, "niches = 2{} - 1, ", pwr2_to_exponent(niches + 1));