src/libs/Bus.js
function _addSubscribers(oEventsCallbacks, sChannelId, oSubscriber) {
  iterateObject(oEventsCallbacks, function (oItem, sEvent) {
    subscribeTo(sChannelId, sEvent, oItem, oSubscriber);
  });
}
function _addSubscribers(oEventsCallbacks, sChannelId, oSubscriber) {
  iterateObject(oEventsCallbacks, function (oItem, sEvent) {
    subscribeTo(sChannelId, sEvent, oItem, oSubscriber);
  });
}
_addSubscribers add all the events of one channel from the subscriber
@param {Object} oEventsCallbacks
@param {String} sChannelId
@param {Object} oSubscriber
@private