class_docstr: Mellowmax policy.
  
  See: http://arxiv.org/abs/1612.05628
  
  Args:
      model (chainer.Link):
          Link that is callable and outputs action values.
      omega (float):
          Parameter of the mellowmax function.
code: def __call__(self, x):
      h = self.model(x)
      return distribution.MellowmaxDistribution(h, omega=self.omega)
  
file_path: chainerrl/chainerrl/policies/mellowmax_policy.py
imports: from logging import getLogger
  import chainer
  from chainerrl import distribution
  from chainerrl.policy import Policy
label_desc: Use image node_id 2 for calling the MellowmaxPolicy obj's underlying member method code with example usage: obj.__call__(x) and returns: distribution