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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 update_check(package_name, package_version, bypass_cache=False, url=None, **extra_data):
 """Convenience method that outputs to stdout if an update is available."""

    checker = UpdateChecker(url)
    checker.bypass_cache = bypass_cache
    result = checker.check(package_name, package_version, **extra_data)
    if result:
        print(result)