code: def test_decr_with_rate_limit_works(self, mock_random, name):
      expected_calls = [
          mock.call(1, attributes=None),
          mock.call(-1, attributes=None),
      ]
      # Create the metric and set value to 1
      self.stats.incr(name)
  
      # Decrement the counter to 0
      self.stats.decr(name, rate=0.5)
      # This one should not decrement because random() will return a value higher than `rate`
      self.stats.decr(name, rate=0.5)
      # This one should raise an exception for a negative `rate` value
      with pytest.raises(ValueError):
          self.stats.decr(name, rate=-0.5)
  
      assert mock_random.call_count == 2
      # add() is called once in the initial stats.incr and once for the decr that passed the rate check.
      self.map[full_name(name)].add.assert_has_calls(expected_calls)
      self.map[full_name(name)].add.call_count == 2
  
imports: from __future__ import annotations
  import logging
  import time
  from unittest import mock
  from unittest.mock import ANY
  import pytest
  from opentelemetry.metrics import MeterProvider
  from airflow.exceptions import InvalidStatsNameException
  from airflow.metrics.otel_logger import OTEL_NAME_MAX_LENGTH, UP_DOWN_COUNTERS, MetricsMap, SafeOtelLogger, _generate_key_name, _is_up_down_counter, full_name
  from airflow.metrics.validators import BACK_COMPAT_METRIC_NAMES, MetricNameLengthExemptionWarning
label_desc: Use image node_id 12 for calling the TestOtelMetrics obj's underlying member method code with example usage: obj.test_decr_with_rate_limit_works(mock_random, name) without return types