class_docstr: Used to check unpickling compat with old implementation.
class_docstr_tok: ["Used","to","check","unpickling","compat","with","old","implementation","."]
code: def state(self, state):
      # Pylint is confused and thinks fset doesn't exist.
      # pylint: disable=no-member
      ConjugateGradientOptimizer.state.fset(self, state)
  
imports: import pickle
  import numpy
  import pytest
  import torch
  from garage.torch.optimizers.conjugate_gradient_optimizer import ConjugateGradientOptimizer
  from garage.torch.optimizers.conjugate_gradient_optimizer import _build_hessian_vector_product
  from garage.torch.optimizers.conjugate_gradient_optimizer import _conjugate_gradient
label_desc: Use image node_id 2 for calling the BrokenPicklingConjugateGradientOptimizer obj's underlying member method code with example usage: obj.state(state) without return types