code: def test_verify_config_missing_config(self):
      config = {}
      self.assertRaises(KeyError, verify_compression_config, config)
  
imports: import unittest
  import os
  from shutil import copyfile, rmtree
  from subprocess import call
  from aup import compression, Experiment, BasicConfig
  from aup.utils import get_default_username
  from aup.compression.utils import verify_compression_config, run_non_automatic_experiment, adjust_compression_config
label_desc: Use image node_id 4 for calling the CompressorMainTest obj's underlying member method code with example usage: obj.test_verify_config_missing_config() without return types