import { Plugin } from "@webiny/plugins";
export interface ValueTransformPluginParamsTransformParams {
    value: Date | string | null | undefined;
}
export interface ValueTransformPluginParamsTransform {
    (params: ValueTransformPluginParamsTransformParams): any;
}
export interface ValueTransformPluginParams {
    fields: string[];
    transform: ValueTransformPluginParamsTransform;
}
export declare abstract class ValueTransformPlugin extends Plugin {
    static readonly type: string;
    private readonly _params;
    constructor(params: ValueTransformPluginParams);
    transform(params: ValueTransformPluginParamsTransformParams): any;
}