code: function StateLink(obj){
      this._id = obj && obj.id;
      this._href = obj && obj.href;
      this._rel = obj && obj.rel;
  }
docs: Contact Link information
  A HATEOAS link to operations applicable to this Contact resource
  @typedef {Object} Contact.StateLink
  @property {string} href - The href of the operation relevant to this resource
  @property {string} rel - The relationship of this operation to the returned resource