export declare function parseString(input: unknown): string | undefined;
export declare function parseBoolean(input: unknown): boolean | undefined;
export declare function isSessionManagedTerminationEnabled(): boolean;
export declare function parsePositiveInt(input: unknown): number | undefined;
export declare function validateSessionClientCallbackUrl(input: string): {
    ok: true;
    normalizedUrl: string;
} | {
    ok: false;
    reason: string;
};
export declare function normalizeTaskCreateItems(body: Record<string, unknown>): {
    items: Record<string, unknown>[];
    error?: string;
};
export declare function normalizeTaskPatch(body: Record<string, unknown>): {
    patch: Record<string, unknown>;
    error?: string;
};
export declare function normalizeClockSessionIdInput(input: unknown): string | undefined;