def METHOD_NAME(eph):
    e = eph['mercury barycenter']
    expected = dedent("""\
        'de421.bsp' segment 0 SOLAR SYSTEM BARYCENTER -> 1 MERCURY BARYCENTER
    """)
    assert str(e) == expected
    expected = dedent("""\
        <ChebyshevPosition 'de421.bsp' segment 0 SOLAR SYSTEM BARYCENTER -> 1 MERCURY BARYCENTER>
    """)
    assert repr(e) == expected