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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 calc_im_size(img_height, img_width):
    '''Calculates shape of data after decoding.

    Parameters
    ----------
    img_height : int
        Height of encoded data.
    img_width : int
        Width of encoded data.

    Returns
    -------
    encoded_shape : tuple(int)
        Gives back 2-tuple with decoded image dimensions.
    '''
    height, width = img_height, img_width
    for _ in range(5):
        height, width = _get_deconv_outsize((height, width),
                                            4, 2, 1)

    return height, width