code: def test_get_value_not_found():
      reporter = Reporter()
      with pytest.raises(KeyError):
          reporter.get_value("a", "b")
  
imports: import logging
  import uuid
  from pathlib import Path
  import numpy
  import pytest
  import torch
  from torch.utils.tensorboard import SummaryWriter
  from espnet2.train.reporter import Average, ReportedValue, Reporter, aggregate
label_desc: Use image node_id 4 for calling a global function with example usage: test_get_value_not_found() without return types