{
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  "assumedRatePerMinute": "0.02",
  "excluded": [
    "minimums",
    "rounding increments",
    "subscription base",
    "retry billing",
    "channels billing rules",
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    "review labor",
    "tax",
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  "scope": "Local PCM WAV headers and hypothetical flat per-minute arithmetic; no transcription performed",
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}