/**
 * Overlay replaceable, provider-confirmed token usage onto an authoritative progress projection.
 *
 * Called only when event or usage state changes—not on animation frames—so live rendering does not
 * rebuild the tree merely because time passed. The event log remains untouched and final usage can
 * replace the preview without ever being counted twice.
 */
import type { ProgressView } from "./types.ts";
/** Apply the latest cumulative usage for active turns, keyed by dynamic step path. */
export declare function withUsagePreviews(view: ProgressView, usageByPath: ReadonlyMap<string, number>): ProgressView;
//# sourceMappingURL=usage-preview.d.ts.map