docs: function convertAny(val, opts) {
    if (!opts) opts = {};
    // use maxCoerceLevel to prevent circular reference parse error
    var maxCoerceLevel = opts.maxCoerceLevel || 5;
    // needCoerce option: default to be `true`
    var needCoerce = opts.coerce !== false;
    return needCoerce ? coerceAll(val, maxCoerceLevel) : val;
  }