code: function Link(properties) {
                  this.signatures = [];
                  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 Link.
  @memberof stratumn.chainscript
  @interface ILink
  @property {string|null} [version] Link version
  @property {Uint8Array|null} [data] Link data
  @property {stratumn.chainscript.ILinkMeta|null} [meta] Link meta
  @property {Array.<stratumn.chainscript.ISignature>|null} [signatures] Link signatures
   
  Constructs a new Link.
  @memberof stratumn.chainscript
  @classdesc Represents a Link.
  @implements ILink
  @constructor
  @param {stratumn.chainscript.ILink=} [properties] Properties to set