code: function ReservedRange(properties) {
                      if (properties)
                          for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                              if (properties[keys[i]] != null)
                                  this[keys[i]] = properties[keys[i]];
                  }
docs: Properties of a ReservedRange.
  @memberof google.protobuf.DescriptorProto
  @interface IReservedRange
  @property {number|null} [start] ReservedRange start
  @property {number|null} [end] ReservedRange end
   
  Constructs a new ReservedRange.
  @memberof google.protobuf.DescriptorProto
  @classdesc Represents a ReservedRange.
  @implements IReservedRange
  @constructor
  @param {google.protobuf.DescriptorProto.IReservedRange=} [properties] Properties to set