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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 convert_to_utc(time):
 """ Convert time to UTC Parameters time : str Time to convert. Has to be of the format '2016-01-01T00:00:00-08:00'. Returns ------- str UTC timestamp. """


        # time is already in UTC
        if 'Z' in time:
            return time
        else:
            time_formatted = time[:-3] + time[-2:]
            dt = datetime.strptime(time_formatted, '%Y-%m-%dT%H:%M:%S%z')
            dt = dt.astimezone(timezone('UTC'))
            return dt.strftime('%Y-%m-%dT%H:%M:%SZ')