Comfyui powerpaint error in ksampler

[qingyuan18]

Error occurred when executing KSampler:
module 'comfy.samplers' has no attribute 'CFGGuider'
File "/home/ubuntu/ComfyUI/custom_nodes/ComfyUI-BrushNet/model_patch.py", line 97, in modified_sample
cfg_guider = comfy.samplers.CFGGuider(model)

comfyui: 2.8.3
powerpaint custormer nodes: https://github.com/nullquant/ComfyUI-BrushNet
function : context awaer

is there any compatible issue?