{
  "approach": "Modify the existing html_params function to process keys ending with '_' by stripping the suffix and combining multiple occurrences of the same parameter (especially 'class') by joining their values with spaces while preserving original key names. Must fix failing tests about class duplication handling.",
  "files_to_edit": [
    "src/wtforms/widgets/core.py"
  ],
  "finish_reason": "stop",
  "hypothesis": "Update html_params to combine duplicate parameters, particularly converting '_'-suffixed variants and merging class_/class attributes.",
  "retries": {},
  "usage": {
    "completion": 101,
    "prompt": 10651,
    "reasoning": 0
  }
}