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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 _run(name,
         cmd,
         output=None,
         no_start=False,
         stdin=None,
         python_shell=True,
         preserve_state=False,
         output_loglevel='debug',
         ignore_retcode=False,
         use_vt=False,
         keep_env=None):
    '''
    Common logic for nspawn.run functions
    '''
    orig_state = state(name)
    exc = None
    try:
        ret = __salt__['container_resource.run'](
            name,
            cmd,
            container_type=__virtualname__,
            exec_driver=EXEC_DRIVER,
            output=output,
            no_start=no_start,
            stdin=stdin,
            python_shell=python_shell,
            output_loglevel=output_loglevel,
            ignore_retcode=ignore_retcode,
            use_vt=use_vt,
            keep_env=keep_env)
    except Exception:
        raise
    finally:
        # Make sure we stop the container if necessary, even if an exception
        # was raised.
        if preserve_state \
                and orig_state == 'stopped' \
                and state(name) != 'stopped':
            stop(name)

    if output in (None, 'all'):
        return ret
    else:
        return ret[output]