curl --request POST \
  --url https://api.mixpeek.com/v1/retrievers/executions/list \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "status": "completed",
  "start_time": "<unknown>",
  "end_time": "<unknown>"
}
'

{
  "pagination": "<unknown>",
  "results": [
    {
      "execution_id": "<string>",
      "execution_mode": "<string>",
      "status": "<string>",
      "timestamp": "<unknown>",
      "duration_ms": 1,
      "credits_used": 1,
      "total_processed": 1,
      "total_returned": 1,
      "stages_completed": 1,
      "total_stages": 1,
      "cache_hit_rate": 0.5,
      "query_summary": "<string>",
      "collection_ids": [
        "<string>"
      ]
    }
  ],
  "total": 0
}