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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 adjust_bounding_box(bbox):
 """Adjust the bounding box as specified by user. Returns the adjusted bounding box. - bbox: Bounding box computed from the canvas drawings. It must be a four-tuple of numbers. """

    for i in range(0, 4):
        if i in bounding_box:
            bbox[i] = bounding_box[i]
        else:
            bbox[i] += delta_bounding_box[i]
    return bbox