new_contents: import json
  import os
  import re
  import sys
  import tempfile
  
  import clr_loader
  
  
  if sys.platform == 'win32':
      clr_loader.get_netfx()
  dotnet_runtime = os.getenv('dotnet_runtime')
  runtime_config = {
      'runtimeOptions': {
          'tfm': f'netcoreapp{dotnet_runtime}',
          'framework': {
              'name': 'Microsoft.NETCore.App',
              'version': f'{dotnet_runtime}.0',
          },
      },
  }
  with tempfile.TemporaryDirectory() as tmpdir:
      runtime_config_file = os.path.join(tmpdir, 'runtime_config.json')
      json.dump(runtime_config, open(runtime_config_file, 'w'))
      clr_loader.get_coreclr(runtime_config_file)
  
subject: Add test script