export declare const canUseDom: () => boolean;
export declare const isRecord: (value: unknown) => value is Record<string, unknown>;
export declare const asRecord: (value: unknown) => Record<string, unknown>;
export declare const asString: (value: unknown) => string | null;
export declare const asNumber: (value: unknown) => number | null;
export declare const normalizeUserId: (value: string | null | undefined) => string | null;