code: def testOne(self, strategy):
      @def_function.function
      def f():
          return array_ops.ones((), dtypes.float32)
  
      results = test_util.gather(strategy, strategy.run(f))
      self.assertAllEqual(
          self.evaluate(results), [1.0] * strategy.num_replicas_in_sync
      )
  
imports: import sys
  from absl.testing import parameterized
  from tensorflow.python.distribute import combinations
  from tensorflow.python.distribute import strategy_combinations
  from tensorflow.python.distribute import test_util
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.eager import test
  from tensorflow.python.framework import config
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
label_desc: Use image node_id 1 for calling the GatherTest obj's underlying member method code with example usage: obj.testOne(strategy) and returns: array_ops