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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 timestep_text(self):
 """Return a text string representing the timestep of the collection."""

        if self.header.analysis_period.timestep == 1:
            return 'Hourly'
        else:
            return '{} Minute'.format(int(60 / self.header.analysis_period.timestep))