class_docstr: Filter invalid annotations.
  
  Args:
      min_gt_bbox_wh (tuple[int]): Minimum width and height of ground truth
          boxes.
class_docstr_tok: ["Filter","invalid","annotations",".","Args",":","min_gt_bbox_wh","(","tuple","[","int","]",")",":","Minimum","width","and","height","of","ground","truth","boxes","."]
code: def __init__(self, min_gt_bbox_wh):
      # TODO: add more filter options
      self.min_gt_bbox_wh = min_gt_bbox_wh
  
imports: import os.path
  import mmcv
  import numpy
  import pycocotools.mask
  from mmdet.core import BitmapMasks, PolygonMasks
  from ..builder import PIPELINES
label_desc: Use image node_id 1 to create a new FilterAnnotations object from inherited base classes: object with example: obj = FilterAnnotations(min_gt_bbox_wh)