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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 create_throttle():
 """ Create a THROTTLE statement """

    throttle_amount = "*" | Combine(number + "%") | number
    return Group(
        function("throttle", throttle_amount, throttle_amount, caseless=True)
    ).setResultsName("throttle")