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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 load_h5(self, filepath):
 """Load a Hdf5 file to the main dataframe :param filepath: url of the csv file to load, can be absolute if it starts with ``/`` or relative if it starts with ``./`` :type filepath: str :example: ``ds.load_h5("./myfile.hdf5")`` """

        try:
            self.start("Loading Hdf5 data...")
            self.df = dd.io.load(filepath)
            self.end("Finished loading Hdf5 data")
        except Exception as e:
            self.err(e, "Can not load Hdf5 file")