code: def test_get_steps_key(self):
      parent = counting.Counter()
      child1 = counting.Counter(
          parent, "child1", time_delta=0.0, return_only_prefixed=False
      )
      child2 = counting.Counter(
          parent, "child2", time_delta=0.0, return_only_prefixed=True
      )
      self.assertEqual(child1.get_steps_key(), "child1_steps")
      self.assertEqual(child2.get_steps_key(), "steps")
      child1.increment(steps=1)
      child2.increment(steps=2)
      self.assertEqual(
          child1.get_counts().get(child1.get_steps_key()), 1
      )
      self.assertEqual(
          child2.get_counts().get(child2.get_steps_key()), 2
      )
  
file_path: acme/acme/utils/counting_test.py
imports: import threading
  from acme.utils import counting
  from absl.testing import absltest
label_desc: Use image node_id 5 for calling the CountingTest obj's underlying member method code with example usage: obj.test_get_steps_key() without return types