import { DataComponent as DC } from '../runtime';
import { FilterDataTransform } from '../spec';
export type FilterDataOptions = Omit<FilterDataTransform, 'type'>;
export declare function defined(d: any): boolean;
/**
 * Filter data by specified fields and filter callback for each fields.
 * It saves datum with every fields defined by default.
 */
export declare const Filter: DC<FilterDataOptions>;