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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_list_player_play_item(p_mlp, p_md):
    '''Play the given media item.
    @param p_mlp: media list player instance.
    @param p_md: the media instance.
    @return: 0 upon success, -1 if the media is not part of the media list.
    '''
    f = _Cfunctions.get('libvlc_media_list_player_play_item', None) or \
        _Cfunction('libvlc_media_list_player_play_item', ((1,), (1,),), None,
                    ctypes.c_int, MediaListPlayer, Media)
    return f(p_mlp, p_md)