import { PipeTransform } from '@nestjs/common';
export declare class EnumPipe<T> implements PipeTransform {
    private readonly title;
    private readonly list;
    private readonly options?;
    constructor(title: string, list: T[], options?: Partial<{
        readonly optional: boolean;
        readonly callback: (item: T) => any;
    }> | undefined);
    transform(value: any): T | null;
}
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