code: function Segment(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 Segment.
  @memberof stratumn.chainscript
  @interface ISegment
  @property {stratumn.chainscript.ILink|null} [link] Segment link
  @property {stratumn.chainscript.ISegmentMeta|null} [meta] Segment meta
   
  Constructs a new Segment.
  @memberof stratumn.chainscript
  @classdesc Represents a Segment.
  @implements ISegment
  @constructor
  @param {stratumn.chainscript.ISegment=} [properties] Properties to set