{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"fx.bcx.ins().iconcat(lsb,"}]}
                        fx.bcx.ins().iconcat(lsb, msb)
                            fx.bcx.ins().iconst(types::I64, (niche_start >> 64) as u64 as i64);
                    }