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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 _netsh_file(content):
    '''
    helper function to get the results of ``netsh -f content.txt``

    Running ``netsh`` will drop you into a ``netsh`` prompt where you can issue
    ``netsh`` commands. You can put a series of commands in an external file and
    run them as if from a ``netsh`` prompt using the ``-f`` switch. That's what
    this function does.

    Args:

        content (str):
            The contents of the file that will be run by the ``netsh -f``
            command

    Returns:
        str: The text returned by the netsh command
    '''
    with tempfile.NamedTemporaryFile(mode='w',
                                     prefix='salt-',
                                     suffix='.netsh',
                                     delete=False) as fp:
        fp.write(content)
    try:
        log.debug('%s:\n%s', fp.name, content)
        return salt.modules.cmdmod.run('netsh -f {0}'.format(fp.name), python_shell=True)
    finally:
        os.remove(fp.name)