/**
 * Shared behaviour for all paginator implementations.
 */
export declare abstract class AbstractPaginator<T> {
    protected readonly pageItems: T[];
    protected perPageCount: number;
    protected currentPath: string;
    protected queryParams: Record<string, string>;
    protected fragmentString: string | null;
    /**
     * @param items - Items for the current page.
     * @param perPage - Requested page size.
     * @param path - Base URL path (may include existing query string).
     * @param query - Extra query parameters merged into generated URLs.
     * @param fragment - Optional URL fragment (without `#`).
     */
    protected constructor(items: T[], perPage: number, path: string, query?: Record<string, string>, fragment?: string | null);
    /** Items on the current page. */
    items(): T[];
    /** Number of items on this page. */
    count(): number;
    isEmpty(): boolean;
    isNotEmpty(): boolean;
    perPage(): number;
    /**
     * Append query string values used when building pagination links.
     */
    appends(key: string | Record<string, string>, value?: string): this;
    /** Replace the base path used for links. */
    withPath(path: string): this;
    /**
     * Merge query values from the optional global resolver (e.g. current HTTP request).
     */
    withQueryString(): this;
    /** Set the URL fragment appended to generated links. */
    fragment(fragment: string | null): this;
    firstItem(): T | undefined;
    lastItem(): T | undefined;
    [Symbol.iterator](): Iterator<T>;
    map<U>(callback: (item: T, index: number) => U): U[];
    /** @internal */
    static currentQueryResolver: (() => Record<string, string>) | undefined;
    /**
     * Register a resolver that {@link withQueryString} merges into link URLs.
     */
    static resolveQueryString(resolver: () => Record<string, string>): void;
    abstract toJSON(): unknown;
}
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