text: export function toJSON(value, arg, ctx) {
    if (Array.isArray(value)) return value.map(function (v, i) {
      return toJSON(v, String(i), ctx);
    });
  
    if (value && typeof value.toJSON === 'function') {
      var anchor = ctx && ctx.anchors && ctx.anchors.get(value);
      if (anchor) ctx.onCreate = function (res) {
        anchor.res = res;
        delete ctx.onCreate;
      };
      var res = value.toJSON(arg, ctx);
      if (anchor && ctx.onCreate) ctx.onCreate(res);
      return res;
    }
  
    if ((!ctx || !ctx.keep) && typeof value === 'bigint') return Number(value);
    return value;
  }