code: def __init__(self):
      ...
  
file_path: AutoGL/autogl/module/feature/_generators/_eigen.py
imports: import autogl
  import numpy
  from scipy.sparse import csr_matrix
  import scipy.sparse
  import scipy.sparse.linalg
  import networkx
  import torch
  from ._basic import BaseFeatureGenerator
  from .._feature_engineer_registry import FeatureEngineerUniversalRegistry
label_desc: Use image node_id 1 to create a new _Eigen object  with example: obj = _Eigen()