import { Addon, AddonRequest, AddonResponse } from "@mediahubmx/schema";
import { AddonClass } from "./addon";
import { ActionHandlerContext } from "./types";
export declare type MigrationContext = {
    clientVersion: null | string;
    addon: AddonClass;
    data: any;
    user: ActionHandlerContext["user"];
    validator: {
        request: (obj: any) => any;
        response: (obj: any) => any;
    };
};
export declare const migrations: {
    item: {
        response(ctx: MigrationContext, input: any, output: any): any;
    };
    addon: {
        response(ctx: MigrationContext, input: AddonRequest, output: AddonResponse): Addon;
    };
};