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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 fieldset(title, items, options=None):
 """A field set with a title and sub items"""

    result = {
        'title': title,
        'type': 'fieldset',
        'items': items
    }
    if options is not None:
        result.update(options)

    return result