def METHOD_NAME(cls, processors, fetch_only=False, uri_prefix=''):
    if not processors:
        return []
    errors = []
    for processor_id, processor in enumerate(processors):
        processor_uri = '{}.{}'.format(uri_prefix or 'postprocessing', processor_id)
        errors.extend(Postprocessor.METHOD_NAME(processor, fetch_only=fetch_only, uri_prefix=processor_uri))
    return errors