import { ArgumentMetadata, PipeTransform } from '@nestjs/common';
import { FitEnum } from 'sharp';
export interface ThumbnailParam {
    width?: number;
    height?: number;
    fit?: keyof FitEnum;
}
export declare type ThumbnailPipeOptions = {
    opts?: ThumbnailParam;
    param?: string;
};
export declare class ThumbnailPipe implements PipeTransform {
    transform(value: any, { metatype }: ArgumentMetadata): Promise<ThumbnailPipeOptions>;
}