code: function drawMultiplePosesResults(poses) {
    const canvas = multiPersonCanvas();
    drawResults(
        canvas, poses, guiState.multiPoseDetection.minPartConfidence,
        guiState.multiPoseDetection.minPoseConfidence);
  
    const {part, showHeatmap, showOffsets, showDisplacements} =
        guiState.visualizeOutputs;
    const partId = +part;
  
    visualizeOutputs(
        partId, showHeatmap, showOffsets, showDisplacements,
        canvas.getContext('2d'));
  }
docs: Draw the results from the multi-pose estimation on to a canvas