def METHOD_NAME():
    global mol, molsym, m, msym
    b = 1.4
    mol = gto.M(
    verbose = 5,
    output = '/dev/null',
    atom = [
        ['N',(  0.000000,  0.000000, -b/2)],
        ['N',(  0.000000,  0.000000,  b/2)], ],
    basis = {'N': 'ccpvdz', },
    )
    m = scf.RHF(mol)
    m.conv_tol = 1e-9
    m.scf()
    molsym = gto.M(
    verbose = 5,
    output = '/dev/null',
    atom = [
        ['N',(  0.000000,  0.000000, -b/2)],
        ['N',(  0.000000,  0.000000,  b/2)], ],
    basis = {'N': 'ccpvdz', },
    symmetry = True
    )
    msym = scf.RHF(molsym)
    msym.conv_tol = 1e-9
    msym.scf()