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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 snap(self, instruction):
 """ Returns a new MayaDT object modified by the given instruction. Powered by snaptime. See https://github.com/zartstrom/snaptime for a complete documentation about the snaptime instructions. """

        return self.from_datetime(snaptime.snap(self.datetime(), instruction))