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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 imdecode(str_img, clip_rect=(0, 0, 0, 0), out=None, index=0, channels=3, mean=None):
 """DEPRECATED, use mx.img instead Parameters str_img : str Binary image data clip_rect : iterable of 4 int Clip decoded image to rectangle (x0, y0, x1, y1). out : NDArray Output buffer. Can be 3 dimensional (c, h, w) or 4 dimensional (n, c, h, w). index : int Output decoded image to i-th slice of 4 dimensional buffer. channels : int Number of channels to output. Decode to grey scale when channels = 1. mean : NDArray Subtract mean from decode image before outputing. """

    # pylint: disable= no-member, protected-access, too-many-arguments
    if mean is None:
        mean = NDArray(_new_empty_handle())
    if out is None:
        return _internal._imdecode(mean, index,
                                   clip_rect[0],
                                   clip_rect[1],
                                   clip_rect[2],
                                   clip_rect[3],
                                   channels,
                                   len(str_img),
                                   str_img=str_img)
    else:
        return _internal._imdecode(mean, index,
                                   clip_rect[0],
                                   clip_rect[1],
                                   clip_rect[2],
                                   clip_rect[3],
                                   channels,
                                   len(str_img),
                                   str_img=str_img,
                                   out=out)