class_docstr: SniperCOCODataSet
class_docstr_tok: ["SniperCOCODataSet"]
code: def set_roidbs(self, roidbs):
      self.roidbs = roidbs
  
imports: import os
  import cv2
  import json
  import copy
  import numpy
  from ppdet.core.workspace import register, serializable
  from ppdet.data.crop_utils.annotation_cropper import AnnoCropper
  from .coco import COCODataSet
  from .dataset import _make_dataset, _is_valid_file
  from ppdet.utils.logger import setup_logger
label_desc: Use image node_id 10 for calling the SniperCOCODataSet obj's underlying member method code with example usage: obj.set_roidbs(roidbs) without return types