code: def audiofile(request):
      """Fixture that provides an AudiofileSpec instance."""
      spec_path = os.path.join(DATADIR, request.param + ".json")
      with open(spec_path) as f:
          spec = json.load(f)
      result = AudiofileSpec(**spec)
      return result
  
imports: import json
  import os
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: audiofile(request) and returns: result