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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 write_events(self, outname):
 """ Write the found events to a sngl inspiral table """

        self.make_output_dir(outname)

        if '.hdf' in outname:
            self.write_to_hdf(outname)
        else:
            raise ValueError('Cannot write to this format')