def METHOD_NAME():
    filename = "$GAMMAPY_DATA/joint-crab/dl3/magic/run_05029748_DL3.fits"
    edisp = EnergyDispersion2D.read(filename)
    hdu = edisp.to_table_hdu()
    assert edisp.is_pointlike
    assert hdu.header["HDUCLAS3"] == "POINT-LIKE"