code: def set_shared_params(a, b):
      """Set shared params (and persistent values) to a link.
  
      Args:
        a (chainer.Link): link whose params are to be replaced
        b (dict): dict that consists of (param_name, multiprocessing.Array)
      """
      assert isinstance(a, chainer.Link)
      remaining_keys = set(b.keys())
      for param_name, param in a.namedparams():
          if param_name in b:
              shared_param = b[param_name]
              param.array = np.frombuffer(
                  shared_param, dtype=param.dtype
              ).reshape(param.shape)
              remaining_keys.remove(param_name)
      for persistent_name, _ in chainerrl.misc.namedpersistent(a):
          if persistent_name in b:
              _set_persistent_values_recursively(
                  a, persistent_name, b[persistent_name]
              )
              remaining_keys.remove(persistent_name)
      assert not remaining_keys
  
imports: import multiprocessing
  import warnings
  import chainer
  import numpy
  import chainerrl
  from chainerrl.misc import random_seed
label_desc: Use image node_id 3 for calling a global function with example usage: set_shared_params(a, b) without return types