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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 OE(element, value, transform=lambda x: x):
 """ Create an Optional Element. Returns an Element as ElementMaker would, unless value is None. Optionally the value can be transformed through a function. None <elem>value</elem> <elem>1</elem> """

    return E(element, transform(value)) if value is not None else None