class_docstr: Extracts data for CompoundVisualizer
class_docstr_tok: ["Extracts","data","for","CompoundVisualizer"]
code: def __init__(self, extractors):
      self.extractors = extractors
  
imports: import logging
  from typing import List, Optional, Sequence, Tuple
  import torch
  from detectron2.layers.nms import batched_nms
  from detectron2.structures.instances import Instances
  from densepose.converters import ToChartResultConverterWithConfidences
  from densepose.structures import DensePoseChartResultWithConfidences, DensePoseEmbeddingPredictorOutput
  from densepose.vis.bounding_box import BoundingBoxVisualizer, ScoredBoundingBoxVisualizer
  from densepose.vis.densepose_outputs_vertex import DensePoseOutputsVertexVisualizer
  from densepose.vis.densepose_results import DensePoseResultsVisualizer
  from .base import CompoundVisualizer
label_desc: Use image node_id 1 to create a new CompoundExtractor object  with example: obj = CompoundExtractor(extractors)