code: def test_fail_parse_model_metrics(self):
      metrics_cache_obj = MetricsCacheYamlImpl(
          os.path.join(dir_path, "metrics_wo_model_metrics.yaml")
      )
      with pytest.raises(merrors.MetricsCacheKeyError) as exc_info:
          metrics_cache_obj._parse_metrics_section()
      assert (
          str(exc_info)
          == "<ExceptionInfo MetricsCacheKeyError(\"'model_metrics' key not found in yaml "
          "file: 'model_metrics'\") tblen=2>"
      )
  
imports: import os
  import uuid
  import pytest
  import ts.metrics.metric_cache_errors
  from ts.metrics.caching_metric import CachingMetric
  from ts.metrics.dimension import Dimension
  from ts.metrics.metric_cache_yaml_impl import MetricsCacheYamlImpl
  from ts.metrics.metric_type_enum import MetricTypes
label_desc: Use image node_id 3 for calling the TestParseModelMetrics obj's underlying member method code with example usage: obj.test_fail_parse_model_metrics() without return types