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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 _service_is_chkconfig(name):
    '''
    Return True if the service is managed by chkconfig.
    '''
    cmdline = '/sbin/chkconfig --list {0}'.format(name)
    return __salt__['cmd.retcode'](cmdline, python_shell=False, ignore_retcode=True) == 0