def METHOD_NAME():
    st = MinimumState(3)
    pkl = pickle.dumps(st)
    st2 = pickle.loads(pkl)
    assert st.vec == st2.vec
    assert st.fval == st2.fval
    assert st.edm == st2.edm
    assert st.nfcn == st2.nfcn
    assert st.is_valid == st2.is_valid
    assert st.has_parameters == st2.has_parameters
    assert st.has_covariance == st2.has_covariance