{
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  "codebook": "e8_shell",
  "codesz": 8,
  "bpw": 6,
  "tune_iters": 8,
  "nsamples": 128,
  "seqlen": 2048,
  "avg_sqnr_db": 26.69,
  "n_quantized_layers": 343,
  "total_time_s": 646.3,
  "source_model": "google/gemma-4-E4B-it"
}