import { PipeTransform } from '@nestjs/common';
type Type = 'ASC' | 'DESC';
export interface IOrder {
    readonly key: string;
    readonly type: Type;
}
export declare class OrderPipe implements PipeTransform {
    private readonly keys;
    private readonly options?;
    constructor(keys: string[], options?: Partial<{
        readonly title: string;
        readonly optional: boolean;
    }> | undefined);
    transform(value: string): IOrder | null;
}
export {};
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