code: def __init__(self):
      self.inv = _np.linalg.inv
      self.norm = _np.linalg.norm
  
imports: import numpy
  from scipy.spatial.distance import cdist, pdist
  from sklearn.metrics.pairwise import euclidean_distances, pairwise_distances
label_desc: Use image node_id 1 to create a new NumPyLinalg object  with example: obj = NumPyLinalg()