use super::session::Session;use super::turn_context::TurnContext;use crate::context::ContextualUserFragment;use codex_features::Feature;const TOKEN_BUDGET_USAGE_THRESHOLDS: [i64; 3] = [25, 50, 75];pub(super) async fn maybe_record_token_budget_remaining_context(    sess: &Session,    turn_context: &TurnContext,    tokens_before_sampling: i64,    tokens_after_sampling: i64,) {    if !turn_context.features.enabled(Feature::TokenBudget) {        return;    }    let Some(model_context_window) = turn_context.model_context_window() else {        return;    };    if model_context_window <= 0 || tokens_after_sampling <= tokens_before_sampling {        return;    }    let tokens_before_sampling = tokens_before_sampling.max(0);    let tokens_after_sampling = tokens_after_sampling.max(0);    let crossed_threshold = TOKEN_BUDGET_USAGE_THRESHOLDS.iter().any(|threshold| {        tokens_before_sampling.saturating_mul(100) < model_context_window.saturating_mul(*threshold)            && tokens_after_sampling.saturating_mul(100)                >= model_context_window.saturating_mul(*threshold)    });    if !crossed_threshold {        return;    }    let tokens_left = model_context_window        .saturating_sub(tokens_after_sampling)        .max(0);    let response_item = ContextualUserFragment::into(        crate::context::TokenBudgetRemainingContext::new(tokens_left),    );    sess.record_conversation_items(turn_context, std::slice::from_ref(&response_item))        .await;}