code: def _make_model(self, **kwargs):
      kwargs.update(self.model_kwargs)
      return self.model_class(**kwargs)
  
file_path: chainerrl/tests/policies_tests/test_deterministic_policy.py
imports: import unittest
  import chainer
  import chainer.functions
  from chainer import testing
  from chainer.testing import attr
  import numpy
  import chainerrl
label_desc: Use image node_id 1 for calling the TestDeterministicPolicy obj's underlying member method code with example usage: obj._make_model() and returns: self