code: def get_optimization_function(
      self,
  ) -> tp.Callable[[tp.Callable[..., tp.Any]], tp.ArrayLike]:
      # create a new instance to avoid deadlock
      return self.__class__(
          self.parametrization, self.budget, self.num_workers
      )._optim_function
  
imports: import pickle
  import numpy
  import pytest
  import nevergrad
  import nevergrad.common.typing
  from nevergrad.functions import ArtificialFunction
  from nevergrad.benchmark import experiments
  from nevergrad.benchmark.xpbase import Experiment
  from .None import recaster
  from .None import optimizerlib
label_desc: Use image node_id 1 for calling the FakeOptimizer obj's underlying member method code with example usage: obj.get_optimization_function() and returns: self