export type ColumnSizeEstimator = (index: number) => number;
export declare function createColumnVirtualizer(input: {
    count: number;
    viewportWidth: number;
    scrollOffset?: number;
    overscan?: number;
    /** Either a uniform size (number) or a per-column size function. */
    estimateSize?: number | ColumnSizeEstimator;
}): {
    setViewportWidth(viewportWidth: number): void;
    setHorizontalOffset(scrollOffset: number): void;
    setOptions(next: Partial<import("./types").VirtualizerOptions>): void;
    setScrollOffset(scrollOffset: number): void;
    setViewportHeight(viewportHeight: number): void;
    scrollToIndex(index: number): void;
    getVirtualItems(): import("./types").VirtualItem[];
    getTotalSize(): number;
    getOffsetForIndex(index: number): number;
    getSizeForIndex(index: number): number;
    getState(): import("./types").VirtualizerState;
    subscribe(listener: () => void): () => boolean;
};