<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_export(self):
 """Overwrite the default export method. - Only exports containers - The key is the first container name """

        ret = []
        try:
            ret = self.stats['containers']
        except KeyError as e:
            logger.debug("docker plugin - Docker export error {}".format(e))
        return ret