code: def get_output(self):
      return self.outputs[self.iter].float()
  
imports: import unittest
  import os
  import torch
  import sys
  import numpy
  import numpy.testing
  from torch_geometric.data import Data
  from torch_points3d.core.data_transform import SaveOriginalPosId
  from torch_points3d.metrics.segmentation_tracker import SegmentationTracker
  from torch_points3d.metrics.segmentation_helpers import SegmentationVoter
  from torch_points3d.metrics.classification_tracker import ClassificationTracker
  from torch_points3d.metrics.s3dis_tracker import S3DISTracker
label_desc: Use image node_id 3 for calling the MockModel obj's underlying member method code with example usage: obj.get_output() and returns: self