{
  "actual_num_records": 1000,
  "buffer_size": 1000,
  "column_statistics": [
    {
      "column_name": "llm_structured_1",
      "column_type": "llm-structured",
      "input_tokens_mean": 424.07,
      "input_tokens_median": 426.0,
      "input_tokens_stddev": 43.38,
      "num_null": 0,
      "num_records": 1000,
      "num_unique": 969,
      "output_tokens_mean": 141.41,
      "output_tokens_median": 127.0,
      "output_tokens_stddev": 62.64,
      "pyarrow_dtype": "struct<answer: string, evidence_quote: string, question: string>",
      "simple_dtype": "dict"
    }
  ],
  "dataset_name": "recipe_test2",
  "file_paths": {
    "data": [
      "data/batch_00000.parquet"
    ]
  },
  "num_completed_batches": 1,
  "schema": {
    "chunk_text": "string",
    "llm_structured_1": "struct<answer: string, evidence_quote: string, question: string>",
    "source_file": "string"
  },
  "target_num_records": 1000,
  "total_num_batches": 1
}