pub fn accept_len(
completion_tokens: usize,
accepted_prediction_tokens: Option<usize>,
) -> Option<f64>Expand description
2026-09-26: Emitted tokens per decode step, completion / (completion - accepted): 1.0 when no draft token was accepted. decode_floor and
concurrency both read this one rule.
None when it cannot be derived: no accept count on the wire, or
accepted >= completion. A None is not 1.0, which would claim the
server accepted nothing.