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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 close(self):
 """Close the underlying hdf5 file"""

        if self.parent != ():
            self.parent.flush()
            self.parent.close()
        if self.hdf5:  # is open
            self.hdf5.flush()
            self.hdf5.close()
            self.hdf5 = ()