class_docstr: Evaluator for the 3D datasets, including QM9, MD17.
  Metric is Mean Absolute Error.
class_docstr_tok: ["Evaluator","for","the","3D","datasets",",","including","QM9",",","MD17",".","Metric","is","Mean","Absolute","Error","."]
code: def __init__(self):
      pass
  
imports: import numpy
  import torch
label_desc: Use image node_id 1 to create a new ThreeDEvaluator object  with example: obj = ThreeDEvaluator()