code: def __init__(self, categories, remap=True):
      self.categories = categories
      self.remap = remap
  
imports: import copy
  import os
  import torch
  import torch.utils.data
  import torchvision
  from pycocotools import mask
  from pycocotools.coco import COCO
  from examples.tvdetection.transforms import Compose
label_desc: Use image node_id 1 to create a new FilterAndRemapCocoCategories object  with example: obj = FilterAndRemapCocoCategories(categories, remap)