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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 get_bucket_page(page):
 """ Returns all the keys in a s3 bucket paginator page. """

    key_list = page.get('Contents', [])
    logger.debug("Retrieving page with {} keys".format(
        len(key_list),
    ))
    return dict((k.get('Key'), k) for k in key_list)