import { Plan } from './_common/plan';
import { AmplifyMigrationStep } from './_common/step';
export declare class AmplifyMigrationRetainStep extends AmplifyMigrationStep {
    forward(): Promise<Plan>;
    rollback(): Promise<Plan>;
    private walkStackHierarchy;
    private walkChildren;
    private classifyStacks;
    private buildRetainOperation;
    private isAllowedRetainChangeset;
    private listNestedStack;
    private findNestedStack;
}
//# sourceMappingURL=retain.d.ts.map