docstr: Predict value from parameterized value function
          
docstr_tok: ["Predict","value","from","parameterized","value","function"]
code: def value(self, cent_obs):
      """Predict value from parameterized value function"""
      values = self.model.value(cent_obs)
      return values
  
imports: import torch
  import torch.nn
  from torch.distributions import Categorical
  import numpy
  import parl
label_desc: Use image node_id 5 for calling the MAPPO obj's underlying member method code with example usage: obj.value(cent_obs) and returns: values