import ts from 'typescript';
import { ScriptBuilder } from '../../sb';
import { VisitOptions } from '../../types';
import { Helper } from '../Helper';
export interface UpgradeHelperOptions {
    readonly approveUpgrade: ts.PropertyDeclaration | ts.MethodDeclaration;
}
export declare class UpgradeHelper extends Helper {
    private readonly approveUpgrade;
    constructor({ approveUpgrade }: UpgradeHelperOptions);
    emit(sb: ScriptBuilder, node: ts.Node, optionsIn: VisitOptions): void;
}