export declare const DEFAULT_MAX_COL_WIDTH = 500;
export declare const DEFAULT_COLS = "auto";
export declare const DEFAULT_DEBOUNCE_MS = 300;
export declare const DEFAULT_GAP_PX = 24;
export declare const COL_COUNT_CSS_VAR_NAME = "--_masonry-layout-col-count";
export declare const GAP_CSS_VAR_NAME = "--_masonry-layout-gap";
export declare const ELEMENT_NODE_TYPE = 1;
export type ColHeightMap = number[];
export type MasonryCols = number | "auto";
/**
 * Returns a number attribute from an element.
 * @param $elem
 * @param name
 * @param defaultValue
 */
export declare function getNumberAttribute<T>($elem: HTMLElement, name: string, defaultValue: T): number | T;
/**
 * Returns the amount of cols that the masonry grid should have.
 * @param totalWidth
 * @param cols
 * @param maxColWidth
 */
export declare function getColCount(totalWidth: number, cols: MasonryCols, maxColWidth: number): number;
/**
 * Debounces a function.
 * @param cb
 * @param ms
 * @param id
 */
export declare function debounce(cb: (() => void), ms: number, id: string): void;
/**
 * Returns the index of the column with the smallest height.
 * @param colHeights
 */
export declare function findSmallestColIndex(colHeights: ColHeightMap): number;