code: def test_all_strategy(self):
      want = [
          ensemble.Candidate(
              "all", [self.fake_builder_1, self.fake_builder_2], []
          )
      ]
      got = ensemble.AllStrategy().generate_ensemble_candidates(
          [self.fake_builder_1, self.fake_builder_2], None
      )
      self.assertEqual(want, got)
  
file_path: adanet/adanet/ensemble/strategy_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from adanet import ensemble
  from adanet import subnetwork
  import mock
  import tensorflow.compat.v2
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 6 for calling the StrategyTest obj's underlying member method code with example usage: obj.test_all_strategy() without return types