code: function(ws, request, response){
  				if (response.error)
  					return params.callbacks.ifError(response.error);
  				if (!response.parent_units || !response.last_stable_mc_ball || !response.last_stable_mc_ball_unit || typeof response.last_stable_mc_ball_mci !== 'number')
  					return params.callbacks.ifError("invalid parents from light vendor");
  				params.lightProps = response;
  				composeJoint(params);
  			}
docs: {},