AttributeError: 'list' object has no attribute '__module__' :hunyuan dit cannot load multiple controlnets

[chuck-ma]

Describe the bug

Can not use multiple controlnets, https://huggingface.co/docs/diffusers/main/en/api/pipelines/controlnet_hunyuandit. According to the docs above, it seems that I just need to use a list of controlnets to init the pipeline.

Reproduction

from diffusers import HunyuanDiT2DControlNetModel, HunyuanDiTControlNetPipeline, HunyuanDiT2DModel
import torch

model_id = "Tencent-Hunyuan/HunyuanDiT-v1.2-Diffusers-Distilled"

depth_controlnet = HunyuanDiT2DControlNetModel.from_pretrained("Tencent-Hunyuan/HunyuanDiT-v1.2-ControlNet-Diffusers-Depth", 
                                                         torch_dtype=torch.float16)
controlnets = [
    depth_controlnet, depth_controlnet
]

hunyuan_inpaint_pipe = HunyuanDiTControlNetPipeline.from_pretrained(model_id,
                                                    controlnet=controlnets, 
                                                    torch_dtype=torch.float16)

Logs

No response

System Info

• 🤗 Diffusers version: 0.30.0.dev0
• Platform: Linux-5.15.0-78-generic-x86_64-with-glibc2.35
• Running on Google Colab?: No
• Python version: 3.10.13
• PyTorch version (GPU?): 2.3.0+cu121 (True)
• Flax version (CPU?/GPU?/TPU?): not installed (NA)
• Jax version: not installed
• JaxLib version: not installed
• Huggingface_hub version: 0.23.4
• Transformers version: 4.41.2
• Accelerate version: 0.29.2
• PEFT version: 0.10.0
• Bitsandbytes version: 0.43.1
• Safetensors version: 0.4.3
• xFormers version: 0.0.26.post1
• Accelerator: NVIDIA GeForce RTX 4090, 24564 MiB

Who can help?

@sayakpaul @yiyixuxu @DN6

[sayakpaul]

Cc: @gnobitab