@staticmethod
def from_h5(filename):
    """
        Read the reflections table from a HDF5 file.

        :param filename: The hdf5 filename
        :return: The reflection table

        """
    from dials.util.nexus_old import NexusFile
    handle = NexusFile(filename, 'r')
    self = handle.get_reflections()
    handle.close()
    return self
