import type { FastModeConfig, FastModeFamily } from "./config-contract.ts";
export declare function normalizeFastMode(value: unknown): FastModeConfig;
export declare function resolveCodexModelFamily(modelId: string | undefined): FastModeFamily | undefined;
export declare function allModelsFastModeState(fast: FastModeConfig): "on" | "off" | "ultrafast" | "mixed";
export declare function resolveFastModeServiceTier(fast: FastModeConfig, modelId: string | undefined): "priority" | "ultrafast" | undefined;