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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_epoch_to_timestamp(cls, timestamp, tsformat):
 """Converts the given float representing UNIX-epochs into an actual timestamp. :param float timestamp: Timestamp as UNIX-epochs. :param string tsformat: Format of the given timestamp. This is used to convert the timestamp from UNIX epochs. For valid examples take a look into the :py:func:`time.strptime` documentation. :return: Returns the timestamp as defined in format. :rtype: string """

        return time.strftime(tsformat, time.gmtime(timestamp))