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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 json_description(shape, **metadata):
 """Return JSON image description from data shape and other metadata. Return UTF-8 encoded JSON. b'{"shape": [256, 256, 3], "axes": "YXS"}' """

    metadata.update(shape=shape)
    return json.dumps(metadata)