code: def __init__(self, policy):
      self.policy = policy
      self.dim = policy.num_params
      self.t = 0
  
file_path: ray/rllib_contrib/es/src/rllib_es/es/optimizers.py
imports: import numpy
label_desc: Use image node_id 1 to create a new Optimizer object  with example: obj = Optimizer(policy)