return g; }
if (g == null) { throw new ApiUsageException("No such group: " + id); }  return g; }
    public ExperimenterGroup getGroup(Long id)    {    	ExperimenterGroup g = iQuery.execute(    			new GroupQ( new Parameters( ).addId(id)));       	if (g == null)     	{    		throw new ApiUsageException("No such group: " + id);    	}    	return g;    }