code: @Override
      public String delete(EntityDeleteOperation deleter) throws ServiceException {
          try {
              return service.delete(deleter);
          } catch (UniformInterfaceException e) {
              throw processCatch(new ServiceException(e));
          } catch (ClientHandlerException e) {
              throw processCatch(new ServiceException(e));
          }
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.microsoft.windowsazure.services.media.entityoperations.EntityContract
  #delete(com.microsoft.windowsazure.services.media.entityoperations.
  EntityDeleteOperation)
  
  @return operation-id if any otherwise null.