human
Give me a Python code to print = (-1) given the following:
I wrote the below code

    _check_unknown_options(unknown_options)
    m = maxcor
    epsilon = eps
    pgtol = gtol
    factr = (ftol / np.finfo(float).eps)
    x0 = asarray(x0).ravel()
    (n,) = x0.shape
    if (bounds is None):
        bounds = ([(None, None)] * n)
    if (len(bounds) != n):
        raise ValueError('length    of    x0    !=    length    of    bounds')
    bounds = [((None if (l == (- np.inf)) else l), (None if (u == np.inf) else u)) for (l, u) in bounds]
    if (disp is not None):
        if (disp == 0):
            iprint = (-1)
        else:
            iprint = disp
    (n_function_evals, fun) = wrap_function(fun, ())
    if (jac is None):
        def func_and_grad(x):
            f = fun(x, *args)
            g = _approx_fprime_helper(x, fun, epsilon, args=args, f0=f)
            return (f, g)
    else:
        def func_and_grad(x):
            f = fun(x, *args)
            g = jac(x, *args)
            return (f, g)
    nbd = zeros(n, int32)
    low_bnd = zeros(n, float64)
    upper_bnd = zeros(n, float64)
    bounds_map = {(None, None): 0, (1, None): 1, (1, 1): 2, (None, 1): 3}
    for i in range(0, n):
        (l, u) = bounds[i]
        if (l is not None):
            low_bnd[i] = l
            l = 1
        if (u is not None):
            upper_bnd[i] = u
            u = 1
        nbd[i] = bounds_map[(l, u)]
    if (not (maxls > 0)):
        raise ValueError('maxls    must    be    positive.')
    x = array(x0, float64)
    f = array(0.0, float64)
    g = zeros((n,), float64)
    wa = zeros((((((2 * m) * n) + (5 * n)) + ((11 * m) * m)) + (8 * m)), float64)
    iwa = zeros((3 * n), int32)
    task = zeros(1, 'S60')
    csave = zeros(1, 'S60')
    lsave = zeros(4, int32)
    isave = zeros(44, int32)
    dsave = zeros(29, float64)
    task[:] = 'START'
    n_iterations = 0
    while 1:
        _lbfgsb.setulb(m, x, low_bnd, upper_bnd, nbd, f, g, factr, pgtol, wa, iwa, task, iprint, csave, lsave, isave, dsave, maxls)
        task_str = task.tostring()
        if task_str.startswith('FG'):
            (f, g)...

What's a good function header?
assistant
#Here is Python code to print = (-1)
.

def _minimize_lbfgsb(fun, x0, args=(), jac=None, bounds=None, disp=None, maxcor=10, ftol=2.220446049250313e-09, gtol=1e-05, eps=1e-08, maxfun=15000, maxiter=15000, iprint=(-1), callback=None, maxls=20, **unknown_options):