export declare const DEFAULT_FORUM_READ_LIMIT = 50;
export declare const MAX_FORUM_READ_LIMIT = 200;
export declare const DEFAULT_FORUM_TOPICS_LIMIT = 100;
export declare const MAX_FORUM_TOPICS_LIMIT = 200;
export declare class ForumStoreValidationError extends Error {
    constructor(message: string, opts?: {
        cause?: unknown;
    });
}
export declare function normalizeForumTopic(topic: unknown): string;
export declare function normalizeForumPrefix(prefix: unknown): string | null;
export declare function normalizeForumReadLimit(limit: unknown): number;
export declare function normalizeForumTopicsLimit(limit: unknown, opts?: {
    defaultLimit?: number | null;
}): number | null;
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