code: def get_image_path(self, image_id: Union[str, int]) -> str:
      if self.dataset_type == "train":
          image_path = f"COCO_train2014_{str(image_id).zfill(12)}.jpg"
      else:
          image_path = f"COCO_val2014_{str(image_id).zfill(12)}.jpg"
      return image_path
  
file_path: mmf/mmf/datasets/builders/okvqa/dataset.py
imports: from typing import Type, Union
  import torch
  from mmf.common.sample import Sample
  from mmf.common.typings import MMFDatasetConfigType
  from mmf.datasets.builders.okvqa.database import OKVQAAnnotationDatabase
  from mmf.datasets.mmf_dataset import MMFDataset
  from mmf.datasets.processors import GraphVQAAnswerProcessor
label_desc: Use image node_id 2 for calling the OKVQADataset obj's underlying member method code with example usage: obj.get_image_path(image_id) and returns: image_path