code: def __init__(self, experiments_root):
      self._experiments_root = experiments_root
      self._collect_experiments()
  
imports: import os
  from glob import glob
  from collections import defaultdict
  import torch
  from plyfile import PlyData, PlyElement
  from numpy.lib import recfunctions
  from torch_points3d.utils.colors import COLORS
  import numpy
label_desc: Use image node_id 1 to create a new ExperimentManager object from inherited base classes: object with example: obj = ExperimentManager(experiments_root)