How to use the sherpa.optmethods._tstoptfct function in sherpa

print('\n', name,' fmin =', fmin)
    for algo in algorithms:
        discrete_integral(name, algo)
        
    def broyden_tridiagonal(name, opt):
        tst_algo(opt, _tstoptfct.broyden_tridiagonal, name, npar)
    name = 'broyden_tridiagonal'
    x0, xmin, xmax, fmin = _tstoptfct.init(name, npar)
    print('\n', name,' fmin =', fmin)
    for algo in algorithms:
        broyden_tridiagonal(name, algo)
        
    def broyden_banded(name, opt):
        tst_algo(opt, _tstoptfct.broyden_banded, name, npar)
    name = 'broyden_banded'
    x0, xmin, xmax, fmin = _tstoptfct.init(name, npar)
    print('\n', name,' fmin =', fmin)
    for algo in algorithms:
        broyden_banded(name, algo)

    def linear_fullrank(name, opt):
        tst_algo(opt, _tstoptfct.linear_fullrank, name, npar)
    name = 'linear_fullrank'
    x0, xmin, xmax, fmin = _tstoptfct.init(name, npar)
    print('\n', name,' fmin =', fmin)
    for algo in algorithms:
        linear_fullrank(name, algo)

    def linear_fullrank1(name, opt):
        tst_algo(opt, _tstoptfct.linear_fullrank, name, npar)
    name = 'linear_fullrank1'
    x0, xmin, xmax, fmin = _tstoptfct.init(name, npar)

def beale(name, opt):
        tst_algo(opt, _tstoptfct.beale, name, npar)
    name = 'beale'

def linear_fullrank1(name, opt):
        tst_algo(opt, _tstoptfct.linear_fullrank, name, npar)
    name = 'linear_fullrank1'

def variably_dimensioned(name, opt):
        tst_algo(opt, _tstoptfct.variably_dimensioned, name, npar)
    name = 'variably_dimensioned'

def discrete_boundary(name, opt):
        tst_algo(opt, _tstoptfct.discrete_boundary, name, npar)
    name = 'discrete_boundary'

def bard(name, opt):
        tst_algo(opt, _tstoptfct.bard, name, 3 * npar)
    name = 'bard'

def broyden_tridiagonal(name, opt):
        tst_algo(opt, _tstoptfct.broyden_tridiagonal, name, npar)
    name = 'broyden_tridiagonal'

def meyer(name, opt):
        tst_algo(opt, _tstoptfct.meyer, name, 3)
    name = 'meyer'

def watson(name, opt):
        tst_algo(opt, _tstoptfct.watson, name, 6)
    name = 'watson'

def chebyquad(name, opt):
        tst_algo(opt, _tstoptfct.chebyquad, name, npar)
    name = 'chebyquad'