ImportError: cannot import name 'ConfigMixin' from 'models.modeling_utils'

[Bin-sam]

run

python3 inference_t2i.py config=configs/mmada_demo.yaml batch_size=1 validation_prompts_file=validation_prompts/text2image_prompts.txt guidance_scale=3.5 generation_timesteps=15

in file modeling_magvitv2.py has from .modeling_utils import ConfigMixin, ModelMixin, register_to_config

but modeling_utils.py has no ConfigMixin and register_to_config