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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 libvlc_media_save_meta(p_md):
    '''Save the meta previously set.
    @param p_md: the media desriptor.
    @return: true if the write operation was successful.
    '''
    f = _Cfunctions.get('libvlc_media_save_meta', None) or \
        _Cfunction('libvlc_media_save_meta', ((1,),), None,
                    ctypes.c_int, Media)
    return f(p_md)