code: function (roles) {
                  var _this = this;
                  return this.points.find(function (point) {
                      return _this.limitsService.compareArray(point.roles, roles);
                  });
              }
docs: returns a point by it's roles
  @private
  @param {?} roles - an array of roles by which the point will be fetched
  @return {?}