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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_at_index(p_mlp, i_index):
    '''Play media list item at position index.
    @param p_mlp: media list player instance.
    @param i_index: index in media list to play.
    @return: 0 upon success -1 if the item wasn't found.
    '''
    f = _Cfunctions.get('libvlc_media_list_player_play_item_at_index', None) or \
        _Cfunction('libvlc_media_list_player_play_item_at_index', ((1,), (1,),), None,
                    ctypes.c_int, MediaListPlayer, ctypes.c_int)
    return f(p_mlp, i_index)