old_contents: from __future__ import absolute_import
  import numpy as np
  import random
  
  
  # Set one rng for all of OPS
  if np.version.version < '1.17':
      # Legacy support, remove when numpy 1.16 support is dropped (Py2)
      class RandomState(np.random.RandomState):
          # method overrides to mimic numpy.random.Generator
          def random(self, *args, **kwargs):
              return self.random_sample(*args, **kwargs)
  
          def integers(self, *args, **kwargs):
              return self.randint(*args, **kwargs)
      DEFAULT_RNG = RandomState()
  else:
      DEFAULT_RNG = np.random.default_rng()
  
  
  def default_rng():
      return DEFAULT_RNG
  
new_contents: import numpy as np
  
  
  # Set one rng for all of OPS
  if np.version.version < '1.17':
      # Legacy support, remove when numpy 1.16 support is dropped (Py2)
      class RandomState(np.random.RandomState):
          # method overrides to mimic numpy.random.Generator
          def random(self, *args, **kwargs):
              return self.random_sample(*args, **kwargs)
  
          def integers(self, *args, **kwargs):
              return self.randint(*args, **kwargs)
      DEFAULT_RNG = RandomState()
  else:
      DEFAULT_RNG = np.random.default_rng()
  
  
  def default_rng():
      return DEFAULT_RNG
  
subject: remove unneeded imports