human
I wrote the below code

    debug = (config.CUDA_DEBUGINFO_DEFAULT if (debug is None) else debug)
    if (link and config.ENABLE_CUDASIM):
        raise NotImplementedError('Cannot    link    PTX    in    the    simulator')
    fastmath = kws.get('fastmath', False)
    if ((argtypes is None) and (not sigutils.is_signature(func_or_sig))):
        if (func_or_sig is None):
            if config.ENABLE_CUDASIM:
                def autojitwrapper(func):
                    return FakeCUDAKernel(func, device=device, fastmath=fastmath, debug=debug)
            else:
                def autojitwrapper(func):
                    return jit(func, device=device, bind=bind, debug=debug, **kws)
            return autojitwrapper
        elif config.ENABLE_CUDASIM:
            return FakeCUDAKernel(func_or_sig, device=device, fastmath=fastmath, debug=debug)
        elif device:
            return jitdevice(func_or_sig, debug=debug, **kws)
        else:
            targetoptions = kws.copy()
            targetoptions['debug'] = debug
            return AutoJitCUDAKernel(func_or_sig, bind=bind, targetoptions=targetoptions)
    else:
        if config.ENABLE_CUDASIM:
            def jitwrapper(func):
                return FakeCUDAKernel(func, device=device, fastmath=fastmath, debug=debug)
            return jitwrapper
        (restype, argtypes) = convert_types(func_or_sig, argtypes)
        if (restype and (not device) and (restype != types.void)):
            raise TypeError('CUDA    kernel    must    have    void    return    type.')
        def kernel_jit(func):
            kernel = compile_kernel(func, argtypes, link=link, debug=debug, inline=inline, fastmath=fastmath)
            if bind:
                kernel.bind()
            return kernel
        def device_jit(func):
            return compile_device(func, restype, argtypes, inline=inline, debug=debug)
        if device:
            return device_jit
        else:
            return kernel_jit

What's a good function header?
assistant
#Here's a good function header.

def jit(func_or_sig=None, argtypes=None, device=False, inline=False, bind=True, link=[], debug=None, **kws):