class_docstr: Support MMOCR text recognition models.
  Refer to https://github.com/open-mmlab/mmocr
code: def image_column_prefix(self):
      return f"{self.image_key}_{COLUMN}"
  
file_path: autogluon/multimodal/src/autogluon/multimodal/models/mmocr_text_recognition.py
imports: import logging
  from typing import List, Optional
  from torch import nn
  from ..constants import AUTOMM, COLUMN, COLUMN_FEATURES, FEATURES, IMAGE, IMAGE_VALID_NUM, LABEL, LOGITS, MASKS, SCORE, TEXT
  from .utils import assign_layer_ids, get_column_features, get_mmocr_config_and_model, get_model_head
label_desc: Use image node_id 5 for calling the MMOCRAutoModelForTextRecognition obj's underlying member method code with example usage: obj.image_column_prefix() and returns: self, str, COLUMN