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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 utc_offset_by_timezone(timezone_name):
 """Returns the UTC offset of the given timezone in hours. Arguments --------- timezone_name: str A string with a name of a timezone. Returns ------- int The UTC offset of the given timezone, in hours. """

    return int(pytz.timezone(timezone_name).utcoffset(
        utc_time()).total_seconds()/SECONDS_IN_HOUR)