could you help me about"AttributeError: 'str' object has no attribute 'pre_transform'"

[2hosun]

from mmdet.apis import init_detector

config_file = "/content/drive/MyDrive/yoloword/yolo_world_l_dual_vlpan_l2norm_2e-3_100e_4x8gpus_obj365v1_goldg_train_lvis_minival.py"
checkpoint_file = "/content/drive/MyDrive/yoloword/yolo_world_l_clip_base_dual_vlpan_2e-3adamw_32xb16_100e_o365_goldg_train_pretrained-0e566235.pth"

yolo_model = init_detector(config_file, checkpoint_file, device='cuda:0')

text = ["A photo of a cat", "A photo of a dog"]
tokenized_text = yolo_model.backbone.text_model.tokenizer(text, padding=True, return_tensors="pt")
text_features = yolo_model.backbone.text_model(**tokenized_text)

print(text_features)

/content/drive/MyDrive/yoloword/third_party/mmyolo/configs/yolov8/yolov8_l_syncbn_fast_8xb16-500e_coco.py in
13 print(last_stage_out_channels)
14
---> 15 pre_transform = base.pre_transform
16 mosaic_affine_transform = base.mosaic_affine_transform
17 last_transform = base.last_transform

AttributeError: 'str' object has no attribute 'pre_transform'