export type { EvaluatedFeatureFlags } from "./helpers.js";
export declare function useFeatureFlag(key: string): boolean;
/**
 * `"loading"` is the answer not having arrived yet. `"unavailable"` is the
 * flags being unreadable for this viewer (signed out, no action surface, or a
 * failed read); callers fail closed on it like `useFeatureFlag`, but can tell
 * it apart from a registered flag that evaluated off.
 */
export type FeatureFlagState = {
    status: "loading";
    enabled: false;
} | {
    status: "ready";
    enabled: boolean;
} | {
    status: "unavailable";
    enabled: false;
};
/**
 * Like `useFeatureFlag`, but reports whether the answer has arrived so a
 * surface can hold a skeleton instead of flashing its flag-off UI first.
 */
export declare function useFeatureFlagState(key: string): FeatureFlagState;
export declare function useFeatureFlags(): Record<string, boolean>;