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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _get_current_tags(name, runas=None):
    '''
    Whether Rabbitmq user's tags need to be changed
    '''
    try:
        return list(__salt__['rabbitmq.list_users'](runas=runas)[name])
    except CommandExecutionError as err:
        log.error('Error: %s', err)
        return []