export declare const conditions: Record<string, {
    condition: Function;
    descriptor: Record<string, unknown>;
}>;
/**
 * Get condition closure with pre-bound arguments.
 *
 * @param {string} name Condition name.
 * @param {Array} args Condition arguments.
 * @returns {Function}
 */
export declare function getCondition(name: string, args: unknown[]): (dataRow: {
    value: unknown;
    meta: {
        type?: string;
        locale?: string;
        dateFormat?: Intl.DateTimeFormatOptions;
        instance?: unknown;
        [key: string]: unknown;
    };
}) => boolean;
/**
 * Get condition object descriptor which defines some additional informations about this condition.
 *
 * @param {string} name Condition name.
 * @returns {object}
 */
export declare function getConditionDescriptor(name: string): Record<string, unknown>;
/**
 * Condition registerer.
 *
 * @param {string} name Condition name.
 * @param {Function} condition Condition function.
 * @param {object} descriptor Condition descriptor.
 */
export declare function registerCondition(name: string, condition: Function, descriptor: Record<string, unknown>): void;