/**
 * A sorting direction.
 */
export declare enum ZSortDirection {
    /**
     * Ascending sort.
     */
    Ascending = "asc",
    /**
     * Descending sort.
     */
    Descending = "desc"
}
/**
 * Represents an option for sorting.
 */
export interface IZSort {
    /**
     * The subject to sort by.
     */
    subject?: string;
    /**
     * The direction to sort.
     */
    direction: ZSortDirection;
}
/**
 * Represents a builder for a sort list.
 */
export declare class ZSortBuilder {
    private _sort;
    /**
     * Initializes a new instance of this object.
     */
    constructor();
    /**
     * Sets all sorts.
     *
     * @param val -
     *        The value to set.
     *
     * @returns
     *        This object.
     */
    sorts(val: IZSort[]): this;
    /**
     * Adds 1 or more sorts.
     *
     * @param val -
     *        The value to concat to the sorts.
     *
     * @returns
     *        This object.
     */
    sort(val: IZSort | IZSort[]): this;
    /**
     * Adds an ascending order clause.
     *
     * @param subject -
     *        The subject to sort by.
     *
     * @returns
     *        This object
     */
    ascending(subject?: string): this;
    /**
     * Adds a descending order clause.
     *
     * @param subject -
     *        The subject to sort by.
     *
     * @returns
     *        This object
     */
    descending(subject?: string): this;
    /**
     * Returns the current sort state.
     *
     * @returns
     *        The current sort state.
     */
    build(): IZSort[];
}
/**
 * A list of all sort directions.
 */
export declare const ZSortDirections: ZSortDirection[];