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  "parameter_classes": {
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  "decision_rule": "A timing family is not promoted merely for lowering deviance. It must fit pre noncentral timing, transfer with frozen shape to post noncentral timing, and use the pre-frozen mechanism scale for the central peak.",
  "scope_exclusion": "The empirical template is an upper-bound timing representation with hundreds of effective shape parameters, not a physical mechanism. Parametric kernels remain phenomenological until independently tied to lifetime, jitter, afterpulse, background and detector calibrations."
}