class_docstr: The base class to prepare data for mmlab models specified by "prefix".
  Child class shall provide its specific collate function in __init__.
class_docstr_tok: ["The","base","class","to","prepare","data","for","mmlab","models","specified","by","``","prefix","''",".","Child","class","shall","provide","its","specific","collate","function","in","__init__","."]
code: def image_key(self):
      return f"{self.prefix}_{IMAGE}"
  
file_path: autogluon/multimodal/src/autogluon/multimodal/data/process_mmlab/process_mmlab_base.py
imports: import logging
  import warnings
  from typing import Callable, Dict, List, Optional, Union
  import numpy
  import PIL
  from PIL import ImageFile
  from torch import nn
  from ...constants import AUTOMM, COLUMN, IMAGE, IMAGE_VALID_NUM, MMDET_IMAGE
  from ..collator import StackCollator
  from ..utils import is_rois_input
label_desc: Use image node_id 2 for calling the MMLabProcessor obj's underlying member method code with example usage: obj.image_key() and returns: self, str, IMAGE