code: function isStaged(change) {
  		for (var i = 0; i < interestedStagedGroup.length; i++) {
  			if (change.type === interestedStagedGroup[i]) {
  				return true;
  			}
  		}
  		return false;
  	}
docs: $NON-NLS-2$ //$NON-NLS-1$ //$NON-NLS-0$