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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 url_for(**options):
    '''Returns the url for the specified options'''

    url_parts = get_url_parts(**options)
    image_hash = hashlib.md5(b(options['image_url'])).hexdigest()
    url_parts.append(image_hash)

    return "/".join(url_parts)