import { IInputItem } from '../services/viz-conf';
export declare class Sort {
    private readonly fn;
    private readonly xform;
    constructor(fn: any, xform: any);
    '@@transducer/result'(v: any): any;
    '@@transducer/step'(res: any, input: IInputItem): any;
}
export declare const sort: (fn: any) => (xform: any) => Sort;